12202203121 has 4 divisors (see below), whose sum is σ = 12461824512. Its totient is φ = 11942581732.

The previous prime is 12202203107. The next prime is 12202203157. The reversal of 12202203121 is 12130220221.

It is a happy number.

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 not a de Polignac number, because 12202203121 - 2⁵ = 12202203089 is a prime.

It is a super-2 number, since 2×12202203121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202203095 and 12202203104.

It is not an unprimeable number, because it can be changed into a prime (12202203721) 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, 129810625 + ... + 129810718.

It is an arithmetic number, because the mean of its divisors is an integer number (3115456128).

Almost surely, 2^12202203121 is an apocalyptic number.

It is an amenable number.

12202203121 is a deficient number, since it is larger than the sum of its proper divisors (259621391).

12202203121 is an equidigital number, since it uses as much as digits as its factorization.

12202203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259621390.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12202203121 its reverse (12130220221), we get a palindrome (24332423342).

The spelling of 12202203121 in words is "twelve billion, two hundred two million, two hundred three thousand, one hundred twenty-one".