21120669407112 has 64 divisors (see below), whose sum is σ = 58111576407360. Its totient is φ = 6343563878400.

The previous prime is 21120669407107. The next prime is 21120669407231. The reversal of 21120669407112 is 21170496602112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353963689 + ... + 354023352.

It is an arithmetic number, because the mean of its divisors is an integer number (907993381365).

Almost surely, 2^{21120669407112} is an apocalyptic number.

21120669407112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21120669407112 is an abundant number, since it is smaller than the sum of its proper divisors (36990907000248).

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

21120669407112 is a wasteful number, since it uses less digits than its factorization.

21120669407112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707987174 (or 707987170 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 21120669407112 in words is "twenty-one trillion, one hundred twenty billion, six hundred sixty-nine million, four hundred seven thousand, one hundred twelve".