21100200112 has 40 divisors (see below), whose sum is σ = 43046976960. Its totient is φ = 9991656000.

The previous prime is 21100200109. The next prime is 21100200133.

21100200112 is nontrivially palindromic in base 10.

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, 1146987 + ... + 1165237.

It is an arithmetic number, because the mean of its divisors is an integer number (1076174424).

Almost surely, 2^21100200112 is an apocalyptic number.

It is an amenable number.

21100200112 is an abundant number, since it is smaller than the sum of its proper divisors (21946776848).

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

21100200112 is a wasteful number, since it uses less digits than its factorization.

21100200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22081 (or 22075 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The spelling of 21100200112 in words is "twenty-one billion, one hundred million, two hundred thousand, one hundred twelve".