122210287 has 2 divisors, whose sum is σ = 122210288. Its totient is φ = 122210286.

The previous prime is 122210273. The next prime is 122210311. The reversal of 122210287 is 782012221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122210287 - 2⁷ = 122210159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122210227) 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, 61105143 + 61105144.

It is an arithmetic number, because the mean of its divisors is an integer number (61105144).

Almost surely, 2^122210287 is an apocalyptic number.

122210287 is a deficient number, since it is larger than the sum of its proper divisors (1).

122210287 is an equidigital number, since it uses as much as digits as its factorization.

122210287 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 25.

The square root of 122210287 is about 11054.8761639378. The cubic root of 122210287 is about 496.2523632844.

The spelling of 122210287 in words is "one hundred twenty-two million, two hundred ten thousand, two hundred eighty-seven".