21716421145227 has 24 divisors (see below), whose sum is σ = 32152337241024. Its totient is φ = 14116835086704.

The previous prime is 21716421145163. The next prime is 21716421145267. The reversal of 21716421145227 is 72254112461712.

21716421145227 is a `hidden beast` number, since 2 + 1 + 7 + 1 + 6 + 4 + 2 + 114 + 522 + 7 = 666.

It is not a de Polignac number, because 21716421145227 - 2⁶ = 21716421145163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21716421145267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47570773 + ... + 48025110.

It is an arithmetic number, because the mean of its divisors is an integer number (1339680718376).

Almost surely, 2^{21716421145227} is an apocalyptic number.

21716421145227 is a deficient number, since it is larger than the sum of its proper divisors (10435916095797).

21716421145227 is a wasteful number, since it uses less digits than its factorization.

21716421145227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95596519 (or 95596516 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The spelling of 21716421145227 in words is "twenty-one trillion, seven hundred sixteen billion, four hundred twenty-one million, one hundred forty-five thousand, two hundred twenty-seven".