21169296112 has 20 divisors (see below), whose sum is σ = 42429840120. Its totient is φ = 10219659968.

The previous prime is 21169296079. The next prime is 21169296133.

21169296112 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22811278 + ... + 22812205.

It is an arithmetic number, because the mean of its divisors is an integer number (2121492006).

Almost surely, 2^21169296112 is an apocalyptic number.

It is an amenable number.

21169296112 is an abundant number, since it is smaller than the sum of its proper divisors (21260544008).

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

21169296112 is a wasteful number, since it uses less digits than its factorization.

21169296112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45623520 (or 45623514 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The spelling of 21169296112 in words is "twenty-one billion, one hundred sixty-nine million, two hundred ninety-six thousand, one hundred twelve".