90190019122 has 32 divisors (see below), whose sum is σ = 159686681472. Its totient is φ = 37404042624.

The previous prime is 90190019113. The next prime is 90190019159. The reversal of 90190019122 is 22191009109.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778368 + ... + 886699.

It is an arithmetic number, because the mean of its divisors is an integer number (4990208796).

Almost surely, 2^90190019122 is an apocalyptic number.

90190019122 is a deficient number, since it is larger than the sum of its proper divisors (69496662350).

90190019122 is a wasteful number, since it uses less digits than its factorization.

90190019122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665202.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 90190019122 in words is "ninety billion, one hundred ninety million, nineteen thousand, one hundred twenty-two".