112212113121 has 24 divisors (see below), whose sum is σ = 170805900096. Its totient is φ = 70847066400.

The previous prime is 112212113113. The next prime is 112212113147. The reversal of 112212113121 is 121311212211.

It is a happy number.

It is not a de Polignac number, because 112212113121 - 2³ = 112212113113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112212113094 and 112212113103.

It is not an unprimeable number, because it can be changed into a prime (112212113171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2662695 + ... + 2704508.

It is an arithmetic number, because the mean of its divisors is an integer number (7116912504).

Almost surely, 2^112212113121 is an apocalyptic number.

It is an amenable number.

112212113121 is a deficient number, since it is larger than the sum of its proper divisors (58593786975).

112212113121 is a wasteful number, since it uses less digits than its factorization.

112212113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5367333 (or 5367330 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

Adding to 112212113121 its reverse (121311212211), we get a palindrome (233523325332).

The spelling of 112212113121 in words is "one hundred twelve billion, two hundred twelve million, one hundred thirteen thousand, one hundred twenty-one".