12202312231 has 4 divisors (see below), whose sum is σ = 12202544200. Its totient is φ = 12202080264.

The previous prime is 12202312181. The next prime is 12202312267. The reversal of 12202312231 is 13221320221.

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-12202312231 is a prime.

It is a super-2 number, since 2×12202312231² (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 = 12202312199 and 12202312208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202312531) 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, 4960 + ... + 156298.

It is an arithmetic number, because the mean of its divisors is an integer number (3050636050).

Almost surely, 2^12202312231 is an apocalyptic number.

12202312231 is a deficient number, since it is larger than the sum of its proper divisors (231969).

12202312231 is an equidigital number, since it uses as much as digits as its factorization.

12202312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231968.

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

Adding to 12202312231 its reverse (13221320221), we get a palindrome (25423632452).

The spelling of 12202312231 in words is "twelve billion, two hundred two million, three hundred twelve thousand, two hundred thirty-one".