112121221938 has 32 divisors (see below), whose sum is σ = 244750540032. Its totient is φ = 33959125200.

The previous prime is 112121221937. The next prime is 112121221969. The reversal of 112121221938 is 839122121211.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 112121221899 and 112121221908.

It is not an unprimeable number, because it can be changed into a prime (112121221931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291868 + ... + 556263.

It is an arithmetic number, because the mean of its divisors is an integer number (7648454376).

Almost surely, 2^112121221938 is an apocalyptic number.

112121221938 is an abundant number, since it is smaller than the sum of its proper divisors (132629318094).

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

112121221938 is a wasteful number, since it uses less digits than its factorization.

112121221938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850150.

The product of its digits is 3456, while the sum is 33.

The spelling of 112121221938 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred twenty-one thousand, nine hundred thirty-eight".