21260130368112 has 160 divisors (see below), whose sum is σ = 63139878432000. Its totient is φ = 6841133510400.

The previous prime is 21260130368077. The next prime is 21260130368159. The reversal of 21260130368112 is 21186303106212.

21260130368112 is a `hidden beast` number, since 2 + 1 + 2 + 601 + 3 + 0 + 36 + 8 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72252487 + ... + 72546137.

It is an arithmetic number, because the mean of its divisors is an integer number (394624240200).

Almost surely, 2^{21260130368112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21260130368112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31569939216000).

21260130368112 is an abundant number, since it is smaller than the sum of its proper divisors (41879748063888).

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

21260130368112 is a wasteful number, since it uses less digits than its factorization.

21260130368112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299476 (or 299464 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 21260130368112 in words is "twenty-one trillion, two hundred sixty billion, one hundred thirty million, three hundred sixty-eight thousand, one hundred twelve".