112121421121 has 8 divisors (see below), whose sum is σ = 118759202784. Its totient is φ = 105488351040.

The previous prime is 112121421089. The next prime is 112121421163. The reversal of 112121421121 is 121124121211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112121421121 - 2⁵ = 112121421089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112121421221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128835 + ... + 1224136.

It is an arithmetic number, because the mean of its divisors is an integer number (14844900348).

Almost surely, 2^112121421121 is an apocalyptic number.

It is an amenable number.

112121421121 is a deficient number, since it is larger than the sum of its proper divisors (6637781663).

112121421121 is a wasteful number, since it uses less digits than its factorization.

112121421121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355791.

The product of its digits is 64, while the sum is 19.

Adding to 112121421121 its reverse (121124121211), we get a palindrome (233245542332).

The spelling of 112121421121 in words is "one hundred twelve billion, one hundred twenty-one million, four hundred twenty-one thousand, one hundred twenty-one".