125212221344 has 48 divisors (see below), whose sum is σ = 287477064000. Its totient is φ = 53662375872.

The previous prime is 125212221319. The next prime is 125212221349. The reversal of 125212221344 is 443122212521.

It is not an unprimeable number, because it can be changed into a prime (125212221349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5692934 + ... + 5714885.

It is an arithmetic number, because the mean of its divisors is an integer number (5989105500).

Almost surely, 2^125212221344 is an apocalyptic number.

125212221344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

125212221344 is an abundant number, since it is smaller than the sum of its proper divisors (162264842656).

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

125212221344 is an equidigital number, since it uses as much as digits as its factorization.

125212221344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11407850 (or 11407828 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

Adding to 125212221344 its reverse (443122212521), we get a palindrome (568334433865).

The spelling of 125212221344 in words is "one hundred twenty-five billion, two hundred twelve million, two hundred twenty-one thousand, three hundred forty-four".