22120212312225 has 96 divisors (see below), whose sum is σ = 41178518156160. Its totient is φ = 11640207847680.

The previous prime is 22120212312101. The next prime is 22120212312283. The reversal of 22120212312225 is 52221321202122.

22120212312225 is a `hidden beast` number, since 2 + 2 + 1 + 202 + 1 + 231 + 2 + 225 = 666.

It is not a de Polignac number, because 22120212312225 - 2¹⁰ = 22120212311201 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43051939 + ... + 43562711.

It is an arithmetic number, because the mean of its divisors is an integer number (428942897460).

Almost surely, 2^{22120212312225} is an apocalyptic number.

22120212312225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22120212312225 is a deficient number, since it is larger than the sum of its proper divisors (19058305843935).

22120212312225 is a wasteful number, since it uses less digits than its factorization.

22120212312225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511648 (or 511637 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 22120212312225 its reverse (52221321202122), we get a palindrome (74341533514347).

The spelling of 22120212312225 in words is "twenty-two trillion, one hundred twenty billion, two hundred twelve million, three hundred twelve thousand, two hundred twenty-five".