12220001121 has 16 divisors (see below), whose sum is σ = 17028950400. Its totient is φ = 7784652288.

The previous prime is 12220001111. The next prime is 12220001141. The reversal of 12220001121 is 12110002221.

It is not a de Polignac number, because 12220001121 - 2⁵ = 12220001089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220001097 and 12220001106.

It is not an unprimeable number, because it can be changed into a prime (12220001111) 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, 715581 + ... + 732458.

It is an arithmetic number, because the mean of its divisors is an integer number (1064309400).

Almost surely, 2^12220001121 is an apocalyptic number.

It is an amenable number.

12220001121 is a deficient number, since it is larger than the sum of its proper divisors (4808949279).

12220001121 is a wasteful number, since it uses less digits than its factorization.

12220001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448168.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12220001121 its reverse (12110002221), we get a palindrome (24330003342).

The spelling of 12220001121 in words is "twelve billion, two hundred twenty million, one thousand, one hundred twenty-one".