122125187 has 2 divisors, whose sum is σ = 122125188. Its totient is φ = 122125186.

The previous prime is 122125169. The next prime is 122125247. The reversal of 122125187 is 781521221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122125187 - 2⁸ = 122124931 is a prime.

It is a super-2 number, since 2×122125187² = 29829122599569938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122125387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61062593 + 61062594.

It is an arithmetic number, because the mean of its divisors is an integer number (61062594).

Almost surely, 2^122125187 is an apocalyptic number.

122125187 is a deficient number, since it is larger than the sum of its proper divisors (1).

122125187 is an equidigital number, since it uses as much as digits as its factorization.

122125187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 29.

The square root of 122125187 is about 11051.0265134059. The cubic root of 122125187 is about 496.1371496273.

The spelling of 122125187 in words is "one hundred twenty-two million, one hundred twenty-five thousand, one hundred eighty-seven".