122270251 has 2 divisors, whose sum is σ = 122270252. Its totient is φ = 122270250.

The previous prime is 122270233. The next prime is 122270257. The reversal of 122270251 is 152072221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122270251 - 2²¹ = 120173099 is a prime.

It is not a weakly prime, because it can be changed into another prime (122270257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61135125 + 61135126.

It is an arithmetic number, because the mean of its divisors is an integer number (61135126).

Almost surely, 2^122270251 is an apocalyptic number.

122270251 is a deficient number, since it is larger than the sum of its proper divisors (1).

122270251 is an equidigital number, since it uses as much as digits as its factorization.

122270251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 122270251 is about 11057.5879377014. The cubic root of 122270251 is about 496.3335141483. Note that the first 3 decimals are identical.

The spelling of 122270251 in words is "one hundred twenty-two million, two hundred seventy thousand, two hundred fifty-one".