1232220131121 has 16 divisors (see below), whose sum is σ = 1942415971200. Its totient is φ = 679845589248.

The previous prime is 1232220131111. The next prime is 1232220131201. The reversal of 1232220131121 is 1211310222321.

It is not a de Polignac number, because 1232220131121 - 2⁷ = 1232220130993 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1232220131101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1011674376 + ... + 1011675593.

It is an arithmetic number, because the mean of its divisors is an integer number (121400998200).

Almost surely, 2^{1232220131121} is an apocalyptic number.

It is an amenable number.

1232220131121 is a deficient number, since it is larger than the sum of its proper divisors (710195840079).

1232220131121 is a wasteful number, since it uses less digits than its factorization.

1232220131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023350008.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1232220131121 its reverse (1211310222321), we get a palindrome (2443530353442).

The spelling of 1232220131121 in words is "one trillion, two hundred thirty-two billion, two hundred twenty million, one hundred thirty-one thousand, one hundred twenty-one".