9902120222112 has 48 divisors (see below), whose sum is σ = 26381021802912. Its totient is φ = 3251442458880.

The previous prime is 9902120222089. The next prime is 9902120222131. The reversal of 9902120222112 is 2112220212099.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769747939 + ... + 769760802.

It is an arithmetic number, because the mean of its divisors is an integer number (549604620894).

Almost surely, 2^{9902120222112} is an apocalyptic number.

It is an amenable number.

9902120222112 is an abundant number, since it is smaller than the sum of its proper divisors (16478901580800).

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

9902120222112 is a wasteful number, since it uses less digits than its factorization.

9902120222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539508821 (or 1539508813 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 9902120222112 in words is "nine trillion, nine hundred two billion, one hundred twenty million, two hundred twenty-two thousand, one hundred twelve".