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101222201212220 = 22511460100914601
BaseRepresentation
bin10111000000111110100001…
…010110001011110100111100
3111021101202012020112002000102
4113000332201112023310330
5101231411032002242340
6555140500504220232
730215030336060444
oct2700764126136474
9437352166462012
10101222201212220
112a2861047aa640
12b42965a46a678
13446329c1728ca
141add275ad7124
15ba804d5d2215
hex5c0fa158bd3c

101222201212220 has 24 divisors (see below), whose sum is σ = 231890860959408. Its totient is φ = 36808073168000.

The previous prime is 101222201212157. The next prime is 101222201212229. The reversal of 101222201212220 is 22212102222101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 101222201212192 and 101222201212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222201212229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230050457081 + ... + 230050457520.

It is an arithmetic number, because the mean of its divisors is an integer number (9662119206642).

Almost surely, 2101222201212220 is an apocalyptic number.

101222201212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101222201212220 is an abundant number, since it is smaller than the sum of its proper divisors (130668659747188).

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

101222201212220 is a wasteful number, since it uses less digits than its factorization.

101222201212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460100914621 (or 460100914619 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 101222201212220 its reverse (22212102222101), we get a palindrome (123434303434321).

The spelling of 101222201212220 in words is "one hundred one trillion, two hundred twenty-two billion, two hundred one million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 460100914601 920201829202 1840403658404 2300504573005 4601009146010 5061110060611 9202018292020 10122220121222 20244440242444 25305550303055 50611100606110 101222201212220