112120010001990 has 192 divisors, whose sum is σ = 297469913832000. Its totient is φ = 29289380170752.

The previous prime is 112120010001929. The next prime is 112120010001991. The reversal of 112120010001990 is 99100010021211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120010001991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9080742997 + ... + 9080755343.

It is an arithmetic number, because the mean of its divisors is an integer number (1549322467875).

Almost surely, 2^{112120010001990} is an apocalyptic number.

112120010001990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 112120010001990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148734956916000).

112120010001990 is an abundant number, since it is smaller than the sum of its proper divisors (185349903830010).

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

112120010001990 is a wasteful number, since it uses less digits than its factorization.

112120010001990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15191 (or 15188 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 112120010001990 in words is "one hundred twelve trillion, one hundred twenty billion, ten million, one thousand, nine hundred ninety".