112120222222121 has 32 divisors (see below), whose sum is σ = 118187603781120. Its totient is φ = 106159072149504.

The previous prime is 112120222221967. The next prime is 112120222222133. The reversal of 112120222222121 is 121222222021211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112120222222121 is a prime.

It is a super-2 number, since 2×112120222222121² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112120222222171) 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, 728198681 + ... + 728352633.

It is an arithmetic number, because the mean of its divisors is an integer number (3693362618160).

Almost surely, 2^{112120222222121} is an apocalyptic number.

It is an amenable number.

112120222222121 is a deficient number, since it is larger than the sum of its proper divisors (6067381558999).

112120222222121 is a wasteful number, since it uses less digits than its factorization.

112120222222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154985.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 112120222222121 its reverse (121222222021211), we get a palindrome (233342444243332).

The spelling of 112120222222121 in words is "one hundred twelve trillion, one hundred twenty billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-one".