9900002122 has 32 divisors (see below), whose sum is σ = 15949446912. Its totient is φ = 4592146944.

The previous prime is 9900002111. The next prime is 9900002197. The reversal of 9900002122 is 2212000099.

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, 1302798 + ... + 1310374.

It is an arithmetic number, because the mean of its divisors is an integer number (498420216).

Almost surely, 2^9900002122 is an apocalyptic number.

9900002122 is a deficient number, since it is larger than the sum of its proper divisors (6049444790).

9900002122 is a wasteful number, since it uses less digits than its factorization.

9900002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8142.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9900002122 is about 99498.7543741126. The cubic root of 9900002122 is about 2147.2293224338.

The spelling of 9900002122 in words is "nine billion, nine hundred million, two thousand, one hundred twenty-two".