22155544345125 has 64 divisors (see below), whose sum is σ = 38058477649920. Its totient is φ = 11434398696000.

The previous prime is 22155544345073. The next prime is 22155544345171. The reversal of 22155544345125 is 52154344555122.

It is not a de Polignac number, because 22155544345125 - 2¹⁴ = 22155544328741 is a prime.

It is a super-2 number, since 2×22155544345125² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 218534196 + ... + 218635554.

It is an arithmetic number, because the mean of its divisors is an integer number (594663713280).

Almost surely, 2^{22155544345125} is an apocalyptic number.

22155544345125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22155544345125 is a deficient number, since it is larger than the sum of its proper divisors (15902933304795).

22155544345125 is a wasteful number, since it uses less digits than its factorization.

22155544345125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120211 (or 120201 counting only the distinct ones).

The product of its digits is 4800000, while the sum is 48.

The spelling of 22155544345125 in words is "twenty-two trillion, one hundred fifty-five billion, five hundred forty-four million, three hundred forty-five thousand, one hundred twenty-five".