990010012102 has 32 divisors (see below), whose sum is σ = 1550451769344. Its totient is φ = 473584708800.

The previous prime is 990010012099. The next prime is 990010012111. The reversal of 990010012102 is 201210010099.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2006202 + ... + 2450482.

It is an arithmetic number, because the mean of its divisors is an integer number (48451617792).

Almost surely, 2^990010012102 is an apocalyptic number.

990010012102 is a deficient number, since it is larger than the sum of its proper divisors (560441757242).

990010012102 is a wasteful number, since it uses less digits than its factorization.

990010012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444724.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 990010012102 in words is "nine hundred ninety billion, ten million, twelve thousand, one hundred two".