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10122112112 = 24790376001
BaseRepresentation
bin10010110110101001…
…10010110001110000
3222010102112120110012
421123110302301300
5131212230041422
64352223554052
7505556350640
oct113324626160
928112476405
1010122112112
114324739712
121b65a5b928
13c540a3868
146c046c520
153e397e4e2
hex25b532c70

10122112112 has 20 divisors (see below), whose sum is σ = 22413248496. Its totient is φ = 4338048000.

The previous prime is 10122112111. The next prime is 10122112123. The reversal of 10122112112 is 21121122101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122112111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45187889 + ... + 45188112.

Almost surely, 210122112112 is an apocalyptic number.

It is an amenable number.

10122112112 is an abundant number, since it is smaller than the sum of its proper divisors (12291136384).

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

10122112112 is an equidigital number, since it uses as much as digits as its factorization.

10122112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90376016 (or 90376010 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10122112112 its reverse (21121122101), we get a palindrome (31243234213).

The spelling of 10122112112 in words is "ten billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 56 112 90376001 180752002 361504004 632632007 723008008 1265264014 1446016016 2530528028 5061056056 10122112112