990101012220012 has 48 divisors (see below), whose sum is σ = 2880293853733632. Its totient is φ = 257169094082880.

The previous prime is 990101012219981. The next prime is 990101012220077. The reversal of 990101012220012 is 210022210101099.

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, 535768945083 + ... + 535768946930.

It is an arithmetic number, because the mean of its divisors is an integer number (60006121952784).

Almost surely, 2^{990101012220012} is an apocalyptic number.

It is an amenable number.

990101012220012 is an abundant number, since it is smaller than the sum of its proper divisors (1890192841513620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990101012220012 is a wasteful number, since it uses less digits than its factorization.

990101012220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071537892038 (or 1071537892036 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 990101012220012 in words is "nine hundred ninety trillion, one hundred one billion, twelve million, two hundred twenty thousand, twelve".