990100210022 has 32 divisors (see below), whose sum is σ = 1851663179520. Its totient is φ = 385743494880.

The previous prime is 990100210007. The next prime is 990100210031. The reversal of 990100210022 is 220012001099.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 990100209973 and 990100210000.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 9965033 + ... + 10063899.

It is an arithmetic number, because the mean of its divisors is an integer number (57864474360).

Almost surely, 2^990100210022 is an apocalyptic number.

990100210022 is a deficient number, since it is larger than the sum of its proper divisors (861562969498).

990100210022 is a wasteful number, since it uses less digits than its factorization.

990100210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163916.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 990100210022 in words is "nine hundred ninety billion, one hundred million, two hundred ten thousand, twenty-two".