22764702205021 has 4 divisors (see below), whose sum is σ = 26016802520032. Its totient is φ = 19512601890012.

The previous prime is 22764702205013. The next prime is 22764702205033. The reversal of 22764702205021 is 12050220746722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22764702205021 - 2³ = 22764702205013 is a prime.

It is a super-2 number, since 2×22764702205021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22764702209021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626050157495 + ... + 1626050157508.

It is an arithmetic number, because the mean of its divisors is an integer number (6504200630008).

Almost surely, 2^{22764702205021} is an apocalyptic number.

It is an amenable number.

22764702205021 is a deficient number, since it is larger than the sum of its proper divisors (3252100315011).

22764702205021 is an equidigital number, since it uses as much as digits as its factorization.

22764702205021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252100315010.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 22764702205021 in words is "twenty-two trillion, seven hundred sixty-four billion, seven hundred two million, two hundred five thousand, twenty-one".