112111122012021 has 32 divisors (see below), whose sum is σ = 181205326938240. Its totient is φ = 67940271504000.

The previous prime is 112111122011983. The next prime is 112111122012059. The reversal of 112111122012021 is 120210221111211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (112111122011983) and next prime (112111122012059).

It is not a de Polignac number, because 112111122012021 - 2⁹ = 112111122011509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112111122011985 and 112111122012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111122010021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12837330 + ... + 19723571.

It is an arithmetic number, because the mean of its divisors is an integer number (5662666466820).

Almost surely, 2^{112111122012021} is an apocalyptic number.

112111122012021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112111122012021 is a deficient number, since it is larger than the sum of its proper divisors (69094204926219).

112111122012021 is a wasteful number, since it uses less digits than its factorization.

112111122012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32572514 (or 32572508 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 112111122012021 its reverse (120210221111211), we get a palindrome (232321343123232).

It can be divided in two parts, 1121111 and 22012021, that added together give a palindrome (23133132).

The spelling of 112111122012021 in words is "one hundred twelve trillion, one hundred eleven billion, one hundred twenty-two million, twelve thousand, twenty-one".