990220111012 has 48 divisors (see below), whose sum is σ = 1994643362880. Its totient is φ = 425397571200.

The previous prime is 990220111003. The next prime is 990220111021. The reversal of 990220111012 is 210111022099.

It is an interprime number because it is at equal distance from previous prime (990220111003) and next prime (990220111021).

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, 1054783 + ... + 1758694.

It is an arithmetic number, because the mean of its divisors is an integer number (41555070060).

Almost surely, 2^990220111012 is an apocalyptic number.

It is an amenable number.

990220111012 is an abundant number, since it is smaller than the sum of its proper divisors (1004423251868).

990220111012 is a wasteful number, since it uses less digits than its factorization.

990220111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813932 (or 2813930 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 990220111012 in words is "nine hundred ninety billion, two hundred twenty million, one hundred eleven thousand, twelve".