990102212110201 has 16 divisors (see below), whose sum is σ = 1015407066009600. Its totient is φ = 964974041005968.

The previous prime is 990102212110183. The next prime is 990102212110247. The reversal of 990102212110201 is 102011212201099.

It is a cyclic number.

It is not a de Polignac number, because 990102212110201 - 2⁵ = 990102212110169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990102212110001) 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, 1868490670 + ... + 1869020488.

It is an arithmetic number, because the mean of its divisors is an integer number (63462941625600).

Almost surely, 2^{990102212110201} is an apocalyptic number.

It is an amenable number.

990102212110201 is a deficient number, since it is larger than the sum of its proper divisors (25304853899399).

990102212110201 is a wasteful number, since it uses less digits than its factorization.

990102212110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696468.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 990102212110201 in words is "nine hundred ninety trillion, one hundred two billion, two hundred twelve million, one hundred ten thousand, two hundred one".