21913650110412 has 72 divisors (see below), whose sum is σ = 57446325994512. Its totient is φ = 7304308228800.

The previous prime is 21913650110377. The next prime is 21913650110533. The reversal of 21913650110412 is 21401105631912.

21913650110412 is a `hidden beast` number, since 2 + 1 + 9 + 1 + 36 + 501 + 104 + 12 = 666.

It is a super-2 number, since 2×21913650110412² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30300462 + ... + 31015242.

Almost surely, 2^{21913650110412} is an apocalyptic number.

It is an amenable number.

21913650110412 is an abundant number, since it is smaller than the sum of its proper divisors (35532675884100).

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

21913650110412 is a wasteful number, since it uses less digits than its factorization.

21913650110412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746341 (or 746327 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 21913650110412 in words is "twenty-one trillion, nine hundred thirteen billion, six hundred fifty million, one hundred ten thousand, four hundred twelve".