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10222123100 = 2252714939781
BaseRepresentation
bin10011000010100100…
…10011100001011100
3222101101201122201212
421201102103201130
5131413330414400
64410155323552
7511212420110
oct114122234134
928341648655
1010222123100
114376138422
121b934505b8
13c6ba1c367
146cd863740
153ec637335
hex26149385c

10222123100 has 72 divisors (see below), whose sum is σ = 25370438688. Its totient is φ = 3502022400.

The previous prime is 10222123049. The next prime is 10222123133. The reversal of 10222123100 is 132122201.

It is a happy number.

It is a super-2 number, since 2×102221231002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1040210 + ... + 1049990.

It is an arithmetic number, because the mean of its divisors is an integer number (352367204).

Almost surely, 210222123100 is an apocalyptic number.

10222123100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10222123100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12685219344).

10222123100 is an abundant number, since it is smaller than the sum of its proper divisors (15148315588).

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

10222123100 is a wasteful number, since it uses less digits than its factorization.

10222123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11295 (or 11288 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10222123100 its reverse (132122201), we get a palindrome (10354245301).

The spelling of 10222123100 in words is "ten billion, two hundred twenty-two million, one hundred twenty-three thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 1493 2986 5972 7465 9781 10451 14930 19562 20902 29860 37325 39124 41804 48905 52255 68467 74650 97810 104510 136934 149300 195620 209020 244525 261275 273868 342335 489050 522550 684670 978100 1045100 1369340 1711675 3423350 6846700 14603033 29206066 58412132 73015165 102221231 146030330 204442462 292060660 365075825 408884924 511106155 730151650 1022212310 1460303300 2044424620 2555530775 5111061550 10222123100