122010857 has 2 divisors, whose sum is σ = 122010858. Its totient is φ = 122010856.

The previous prime is 122010851. The next prime is 122010881. The reversal of 122010857 is 758010221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113124496 + 8886361 = 10636^2 + 2981^2 .

It is a cyclic number.

It is not a de Polignac number, because 122010857 - 2⁴ = 122010841 is a prime.

It is not a weakly prime, because it can be changed into another prime (122010851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005428 + 61005429.

It is an arithmetic number, because the mean of its divisors is an integer number (61005429).

Almost surely, 2^122010857 is an apocalyptic number.

It is an amenable number.

122010857 is a deficient number, since it is larger than the sum of its proper divisors (1).

122010857 is an equidigital number, since it uses as much as digits as its factorization.

122010857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 122010857 is about 11045.8524795509. The cubic root of 122010857 is about 495.9822782972.

The spelling of 122010857 in words is "one hundred twenty-two million, ten thousand, eight hundred fifty-seven".