2225624622921 has 24 divisors (see below), whose sum is σ = 3674192995200. Its totient is φ = 1271734960896.

The previous prime is 2225624622883. The next prime is 2225624622961. The reversal of 2225624622921 is 1292264265222.

2225624622921 is a `hidden beast` number, since 2 + 2 + 2 + 562 + 4 + 62 + 2 + 9 + 21 = 666.

It is not a de Polignac number, because 2225624622921 - 2¹¹ = 2225624620873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2225624622961) 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, 925780 + ... + 2303978.

It is an arithmetic number, because the mean of its divisors is an integer number (153091374800).

Almost surely, 2^{2225624622921} is an apocalyptic number.

2225624622921 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2225624622921 is a deficient number, since it is larger than the sum of its proper divisors (1448568372279).

2225624622921 is a wasteful number, since it uses less digits than its factorization.

2225624622921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403845 (or 1403842 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 2225624622921 in words is "two trillion, two hundred twenty-five billion, six hundred twenty-four million, six hundred twenty-two thousand, nine hundred twenty-one".