122151331 has 2 divisors, whose sum is σ = 122151332. Its totient is φ = 122151330.

The previous prime is 122151317. The next prime is 122151371. The reversal of 122151331 is 133151221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122151331 - 2⁷ = 122151203 is a prime.

It is a super-2 number, since 2×122151331² = 29841895330143122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122151299 and 122151308.

It is not a weakly prime, because it can be changed into another prime (122151371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61075665 + 61075666.

It is an arithmetic number, because the mean of its divisors is an integer number (61075666).

Almost surely, 2^122151331 is an apocalyptic number.

122151331 is a deficient number, since it is larger than the sum of its proper divisors (1).

122151331 is an equidigital number, since it uses as much as digits as its factorization.

122151331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 19.

The square root of 122151331 is about 11052.2093266460. The cubic root of 122151331 is about 496.1725506898.

The spelling of 122151331 in words is "one hundred twenty-two million, one hundred fifty-one thousand, three hundred thirty-one".