125020722717 has 12 divisors (see below), whose sum is σ = 197002351104. Its totient is φ = 75770134920.

The previous prime is 125020722667. The next prime is 125020722721. The reversal of 125020722717 is 717227020521.

It is a happy number.

125020722717 is a `hidden beast` number, since 12 + 502 + 0 + 72 + 2 + 71 + 7 = 666.

It is not a de Polignac number, because 125020722717 - 2¹² = 125020718621 is a prime.

It is a super-2 number, since 2×125020722717² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125020722017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631417693 + ... + 631417890.

It is an arithmetic number, because the mean of its divisors is an integer number (16416862592).

Almost surely, 2^125020722717 is an apocalyptic number.

It is an amenable number.

125020722717 is a deficient number, since it is larger than the sum of its proper divisors (71981628387).

125020722717 is a wasteful number, since it uses less digits than its factorization.

125020722717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262835600 (or 1262835597 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The spelling of 125020722717 in words is "one hundred twenty-five billion, twenty million, seven hundred twenty-two thousand, seven hundred seventeen".