125011221522530 has 64 divisors (see below), whose sum is σ = 274409223932160. Its totient is φ = 40048913700864.

The previous prime is 125011221522521. The next prime is 125011221522541. The reversal of 125011221522530 is 35225122110521.

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 31 ways as a sum of consecutive naturals, for example, 643693319 + ... + 643887498.

It is an arithmetic number, because the mean of its divisors is an integer number (4287644123940).

Almost surely, 2^{125011221522530} is an apocalyptic number.

125011221522530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125011221522530 is an abundant number, since it is smaller than the sum of its proper divisors (149398002409630).

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

125011221522530 is a wasteful number, since it uses less digits than its factorization.

125011221522530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287580923.

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 125011221522530 in words is "one hundred twenty-five trillion, eleven billion, two hundred twenty-one million, five hundred twenty-two thousand, five hundred thirty".