122218403 has 2 divisors, whose sum is σ = 122218404. Its totient is φ = 122218402.

The previous prime is 122218387. The next prime is 122218433. The reversal of 122218403 is 304812221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122218403 - 2⁴ = 122218387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (122218433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61109201 + 61109202.

It is an arithmetic number, because the mean of its divisors is an integer number (61109202).

Almost surely, 2^122218403 is an apocalyptic number.

122218403 is a deficient number, since it is larger than the sum of its proper divisors (1).

122218403 is an equidigital number, since it uses as much as digits as its factorization.

122218403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 122218403 is about 11055.2432356778. The cubic root of 122218403 is about 496.2633484345.

The spelling of 122218403 in words is "one hundred twenty-two million, two hundred eighteen thousand, four hundred three".