9901122101112 has 32 divisors (see below), whose sum is σ = 27003060276480. Its totient is φ = 3000340030560.

The previous prime is 9901122101107. The next prime is 9901122101161. The reversal of 9901122101112 is 2111012211099.

It is a super-2 number, since 2×9901122101112² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9901122101112.

It is a congruent number.

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, 18752124928 + ... + 18752125455.

It is an arithmetic number, because the mean of its divisors is an integer number (843845633640).

Almost surely, 2^{9901122101112} is an apocalyptic number.

It is an amenable number.

9901122101112 is an abundant number, since it is smaller than the sum of its proper divisors (17101938175368).

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

9901122101112 is a wasteful number, since it uses less digits than its factorization.

9901122101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37504250403 (or 37504250399 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 9901122101112 in words is "nine trillion, nine hundred one billion, one hundred twenty-two million, one hundred one thousand, one hundred twelve".