122666231 has 2 divisors, whose sum is σ = 122666232. Its totient is φ = 122666230.

The previous prime is 122666227. The next prime is 122666239. The reversal of 122666231 is 132666221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122666231 - 2² = 122666227 is a prime.

It is a super-2 number, since 2×122666231² = 30094008455490722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122666194 and 122666203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122666239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61333115 + 61333116.

It is an arithmetic number, because the mean of its divisors is an integer number (61333116).

Almost surely, 2^122666231 is an apocalyptic number.

122666231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122666231 is an equidigital number, since it uses as much as digits as its factorization.

122666231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 122666231 is about 11075.4788158346. The cubic root of 122666231 is about 496.8687393486.

The spelling of 122666231 in words is "one hundred twenty-two million, six hundred sixty-six thousand, two hundred thirty-one".