990110022 has 32 divisors (see below), whose sum is σ = 2287315584. Its totient is φ = 282384000.

The previous prime is 990109999. The next prime is 990110053. The reversal of 990110022 is 220011099.

It is a junction number, because it is equal to n+sod(n) for n = 990109974 and 990110001.

It is a congruent number.

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, 440104 + ... + 442347.

It is an arithmetic number, because the mean of its divisors is an integer number (71478612).

Almost surely, 2^990110022 is an apocalyptic number.

990110022 is an abundant number, since it is smaller than the sum of its proper divisors (1297205562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990110022 is a wasteful number, since it uses less digits than its factorization.

990110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882484.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 990110022 is about 31466.0137608818. The cubic root of 990110022 is about 996.6924125940.

The spelling of 990110022 in words is "nine hundred ninety million, one hundred ten thousand, twenty-two".