12202131223 has 4 divisors (see below), whose sum is σ = 12432360168. Its totient is φ = 11971902280.

The previous prime is 12202131127. The next prime is 12202131229. The reversal of 12202131223 is 32213120221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12202131223 is a prime.

It is a super-2 number, since 2×12202131223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12202131223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202131229) 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, 115114393 + ... + 115114498.

It is an arithmetic number, because the mean of its divisors is an integer number (3108090042).

Almost surely, 2^12202131223 is an apocalyptic number.

12202131223 is a deficient number, since it is larger than the sum of its proper divisors (230228945).

12202131223 is an equidigital number, since it uses as much as digits as its factorization.

12202131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230228944.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12202131223 its reverse (32213120221), we get a palindrome (44415251444).

The spelling of 12202131223 in words is "twelve billion, two hundred two million, one hundred thirty-one thousand, two hundred twenty-three".