122402407 has 2 divisors, whose sum is σ = 122402408. Its totient is φ = 122402406.

The previous prime is 122402377. The next prime is 122402411. The reversal of 122402407 is 704204221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122402407 - 2⁷ = 122402279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122402437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61201203 + 61201204.

It is an arithmetic number, because the mean of its divisors is an integer number (61201204).

Almost surely, 2^122402407 is an apocalyptic number.

122402407 is a deficient number, since it is larger than the sum of its proper divisors (1).

122402407 is an equidigital number, since it uses as much as digits as its factorization.

122402407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 122402407 is about 11063.5621298025. The cubic root of 122402407 is about 496.5122707232.

Adding to 122402407 its reverse (704204221), we get a palindrome (826606628).

The spelling of 122402407 in words is "one hundred twenty-two million, four hundred two thousand, four hundred seven".