122090090 has 32 divisors (see below), whose sum is σ = 240205824. Its totient is φ = 44478720.

The previous prime is 122090083. The next prime is 122090093. The reversal of 122090090 is 90090221.

It is not an unprimeable number, because it can be changed into a prime (122090093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6314 + ... + 16853.

It is an arithmetic number, because the mean of its divisors is an integer number (7506432).

Almost surely, 2^122090090 is an apocalyptic number.

122090090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122090090 is a deficient number, since it is larger than the sum of its proper divisors (118115734).

122090090 is a wasteful number, since it uses less digits than its factorization.

122090090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23222.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 122090090 is about 11049.4384472696. The cubic root of 122090090 is about 496.0896175434.

The spelling of 122090090 in words is "one hundred twenty-two million, ninety thousand, ninety".