112412122221 has 32 divisors (see below), whose sum is σ = 176941047808. Its totient is φ = 62120934720.

The previous prime is 112412122219. The next prime is 112412122237. The reversal of 112412122221 is 122221214211.

It is not a de Polignac number, because 112412122221 - 2¹ = 112412122219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112412122211) 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, 907215 + ... + 1023651.

It is an arithmetic number, because the mean of its divisors is an integer number (5529407744).

Almost surely, 2^112412122221 is an apocalyptic number.

It is an amenable number.

112412122221 is a deficient number, since it is larger than the sum of its proper divisors (64528925587).

112412122221 is a wasteful number, since it uses less digits than its factorization.

112412122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117961.

The product of its digits is 256, while the sum is 21.

Adding to 112412122221 its reverse (122221214211), we get a palindrome (234633336432).

The spelling of 112412122221 in words is "one hundred twelve billion, four hundred twelve million, one hundred twenty-two thousand, two hundred twenty-one".