23220113121 has 24 divisors (see below), whose sum is σ = 33946383744. Its totient is φ = 15293383200.

The previous prime is 23220113107. The next prime is 23220113141. The reversal of 23220113121 is 12131102232.

It is not a de Polignac number, because 23220113121 - 2⁶ = 23220113057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23220113094 and 23220113103.

It is not an unprimeable number, because it can be changed into a prime (23220113141) 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, 320571 + ... + 386271.

It is an arithmetic number, because the mean of its divisors is an integer number (1414432656).

Almost surely, 2^23220113121 is an apocalyptic number.

It is an amenable number.

23220113121 is a deficient number, since it is larger than the sum of its proper divisors (10726270623).

23220113121 is a wasteful number, since it uses less digits than its factorization.

23220113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66181 (or 66178 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23220113121 its reverse (12131102232), we get a palindrome (35351215353).

The spelling of 23220113121 in words is "twenty-three billion, two hundred twenty million, one hundred thirteen thousand, one hundred twenty-one".