113222142121 has 4 divisors (see below), whose sum is σ = 123515064144. Its totient is φ = 102929220100.

The previous prime is 113222142097. The next prime is 113222142169. The reversal of 113222142121 is 121241222311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113222142121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113222142092 and 113222142101.

It is not an unprimeable number, because it can be changed into a prime (113222142421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5146460995 + ... + 5146461016.

It is an arithmetic number, because the mean of its divisors is an integer number (30878766036).

Almost surely, 2^113222142121 is an apocalyptic number.

113222142121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113222142121 is a deficient number, since it is larger than the sum of its proper divisors (10292922023).

113222142121 is a wasteful number, since it uses less digits than its factorization.

113222142121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292922022.

The product of its digits is 384, while the sum is 22.

Adding to 113222142121 its reverse (121241222311), we get a palindrome (234463364432).

The spelling of 113222142121 in words is "one hundred thirteen billion, two hundred twenty-two million, one hundred forty-two thousand, one hundred twenty-one".