21121140050316 has 72 divisors (see below), whose sum is σ = 55765262804160. Its totient is φ = 6989729756112.

The previous prime is 21121140050281. The next prime is 21121140050383. The reversal of 21121140050316 is 61305004112112.

21121140050316 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 1 + 140 + 0 + 503 + 16 = 666.

It is a super-2 number, since 2×21121140050316² (a number of 27 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21121140050316.

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, 78028806 + ... + 78299021.

Almost surely, 2^{21121140050316} is an apocalyptic number.

It is an amenable number.

21121140050316 is an abundant number, since it is smaller than the sum of its proper divisors (34644122753844).

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

21121140050316 is a wasteful number, since it uses less digits than its factorization.

21121140050316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156327985 (or 156327971 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 21121140050316 its reverse (61305004112112), we get a palindrome (82426144162428).

The spelling of 21121140050316 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred forty million, fifty thousand, three hundred sixteen".