21723755614122 has 16 divisors (see below), whose sum is σ = 45734222345760. Its totient is φ = 6860133351792.

The previous prime is 21723755614063. The next prime is 21723755614129. The reversal of 21723755614122 is 22141655732712.

It is a super-2 number, since 2×21723755614122² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21723755614129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95279629773 + ... + 95279630000.

It is an arithmetic number, because the mean of its divisors is an integer number (2858388896610).

Almost surely, 2^{21723755614122} is an apocalyptic number.

21723755614122 is an abundant number, since it is smaller than the sum of its proper divisors (24010466731638).

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

21723755614122 is a wasteful number, since it uses less digits than its factorization.

21723755614122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190559259797.

The product of its digits is 1411200, while the sum is 48.

The spelling of 21723755614122 in words is "twenty-one trillion, seven hundred twenty-three billion, seven hundred fifty-five million, six hundred fourteen thousand, one hundred twenty-two".