21232850112 has 84 divisors (see below), whose sum is σ = 63114256296. Its totient is φ = 7077611520.

The previous prime is 21232850069. The next prime is 21232850147. The reversal of 21232850112 is 21105823212.

21232850112 is a `hidden beast` number, since 2 + 123 + 28 + 501 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 667089 + ... + 698192.

It is an arithmetic number, because the mean of its divisors is an integer number (751360194).

Almost surely, 2^21232850112 is an apocalyptic number.

It is an amenable number.

21232850112 is an abundant number, since it is smaller than the sum of its proper divisors (41881406184).

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

21232850112 is an equidigital number, since it uses as much as digits as its factorization.

21232850112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365308 (or 1365286 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 21232850112 in words is "twenty-one billion, two hundred thirty-two million, eight hundred fifty thousand, one hundred twelve".