21100610112 has 56 divisors (see below), whose sum is σ = 56112192576. Its totient is φ = 6997820928.

The previous prime is 21100610087. The next prime is 21100610129. The reversal of 21100610112 is 21101600112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21100610091 and 21100610100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241108 + ... + 316755.

Almost surely, 2^21100610112 is an apocalyptic number.

It is an amenable number.

21100610112 is an abundant number, since it is smaller than the sum of its proper divisors (35011582464).

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

21100610112 is a wasteful number, since it uses less digits than its factorization.

21100610112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558075 (or 558065 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

The spelling of 21100610112 in words is "twenty-one billion, one hundred million, six hundred ten thousand, one hundred twelve".