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101220210102220 = 225115091011189399
BaseRepresentation
bin10111000000111100101010…
…101010101100111111001100
3111021101120001110220012120121
4113000330222222230333030
5101231342442241232340
6555135531135554324
730214630110653146
oct2700745252547714
9437346043805517
10101220210102220
112a285282885190
12b4291a368b9a4
1344630427bbb01
141add1274b3c96
15ba7e838c894a
hex5c0f2aaacfcc

101220210102220 has 96 divisors (see below), whose sum is σ = 232367450112000. Its totient is φ = 36730992019200.

The previous prime is 101220210102163. The next prime is 101220210102223. The reversal of 101220210102220 is 22201012022101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101220210102194 and 101220210102203.

It is not an unprimeable number, because it can be changed into a prime (101220210102223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1132185081 + ... + 1132274479.

It is an arithmetic number, because the mean of its divisors is an integer number (2420494272000).

Almost surely, 2101220210102220 is an apocalyptic number.

101220210102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220210102220 is an abundant number, since it is smaller than the sum of its proper divisors (131147240009780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101220210102220 is a wasteful number, since it uses less digits than its factorization.

101220210102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100039 (or 100037 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101220210102220 its reverse (22201012022101), we get a palindrome (123421222124321).

The spelling of 101220210102220 in words is "one hundred one trillion, two hundred twenty billion, two hundred ten million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 509 1018 2036 2545 5090 5599 10111 10180 11198 20222 22396 27995 40444 50555 55990 89399 101110 111221 111980 178798 202220 222442 357596 444884 446995 556105 893990 983389 1112210 1787980 1966778 2224420 3933556 4916945 5146499 9833890 10292998 19667780 20585996 25732495 45504091 51464990 56611489 91008182 102929980 113222978 182016364 226445956 227520455 283057445 455040910 500545001 566114890 903913289 910081820 1001090002 1132229780 1807826578 2002180004 2502725005 3615653156 4519566445 5005450010 9039132890 9943046179 10010900020 18078265780 19886092358 39772184716 49715230895 99430461790 198860923580 460091864101 920183728202 1840367456404 2300459320505 4600918641010 5061010505111 9201837282020 10122021010222 20244042020444 25305052525555 50610105051110 101220210102220