122312447 has 2 divisors, whose sum is σ = 122312448. Its totient is φ = 122312446.

The previous prime is 122312431. The next prime is 122312479. The reversal of 122312447 is 744213221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122312447 - 2⁴ = 122312431 is a prime.

It is a super-2 number, since 2×122312447² = 29920669382255618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122312147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61156223 + 61156224.

It is an arithmetic number, because the mean of its divisors is an integer number (61156224).

Almost surely, 2^122312447 is an apocalyptic number.

122312447 is a deficient number, since it is larger than the sum of its proper divisors (1).

122312447 is an equidigital number, since it uses as much as digits as its factorization.

122312447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 122312447 is about 11059.4957841667. The cubic root of 122312447 is about 496.3906032060.

Adding to 122312447 its reverse (744213221), we get a palindrome (866525668).

The spelling of 122312447 in words is "one hundred twenty-two million, three hundred twelve thousand, four hundred forty-seven".