125612217201 has 16 divisors (see below), whose sum is σ = 177376189824. Its totient is φ = 78797155584.

The previous prime is 125612217169. The next prime is 125612217239. The reversal of 125612217201 is 102712216521.

It is a happy number.

It is not a de Polignac number, because 125612217201 - 2⁵ = 125612217169 is a prime.

It is a super-2 number, since 2×125612217201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125612217281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63930 + ... + 505283.

It is an arithmetic number, because the mean of its divisors is an integer number (11086011864).

Almost surely, 2^125612217201 is an apocalyptic number.

It is an amenable number.

125612217201 is a deficient number, since it is larger than the sum of its proper divisors (51763972623).

125612217201 is a wasteful number, since it uses less digits than its factorization.

125612217201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573560.

The product of its (nonzero) digits is 3360, while the sum is 30.

The spelling of 125612217201 in words is "one hundred twenty-five billion, six hundred twelve million, two hundred seventeen thousand, two hundred one".