212550125157 has 6 divisors (see below), whose sum is σ = 307016847462. Its totient is φ = 141700083432.

The previous prime is 212550125153. The next prime is 212550125159. The reversal of 212550125157 is 751521055212.

212550125157 is a `hidden beast` number, since 2 + 1 + 2 + 550 + 1 + 2 + 51 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 148383662436 + 64166462721 = 385206^2 + 253311^2 .

It is not a de Polignac number, because 212550125157 - 2² = 212550125153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212550125153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11808340278 + ... + 11808340295.

It is an arithmetic number, because the mean of its divisors is an integer number (51169474577).

Almost surely, 2^212550125157 is an apocalyptic number.

It is an amenable number.

212550125157 is a deficient number, since it is larger than the sum of its proper divisors (94466722305).

212550125157 is a wasteful number, since it uses less digits than its factorization.

212550125157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23616680579 (or 23616680576 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 36.

The spelling of 212550125157 in words is "two hundred twelve billion, five hundred fifty million, one hundred twenty-five thousand, one hundred fifty-seven".