122258887 has 2 divisors, whose sum is σ = 122258888. Its totient is φ = 122258886.

The previous prime is 122258839. The next prime is 122258923. The reversal of 122258887 is 788852221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122258887 - 2¹⁵ = 122226119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122258387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61129443 + 61129444.

It is an arithmetic number, because the mean of its divisors is an integer number (61129444).

Almost surely, 2^122258887 is an apocalyptic number.

122258887 is a deficient number, since it is larger than the sum of its proper divisors (1).

122258887 is an equidigital number, since it uses as much as digits as its factorization.

122258887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 143360, while the sum is 43.

The square root of 122258887 is about 11057.0740704763. The cubic root of 122258887 is about 496.3181369852.

It can be divided in two parts, 12225 and 8887, that added together give a palindrome (21112).

The spelling of 122258887 in words is "one hundred twenty-two million, two hundred fifty-eight thousand, eight hundred eighty-seven".