12302221320231 has 4 divisors (see below), whose sum is σ = 16402961760312. Its totient is φ = 8201480880152.

The previous prime is 12302221320229. The next prime is 12302221320241. The reversal of 12302221320231 is 13202312220321.

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

It is a cyclic number.

It is not a de Polignac number, because 12302221320231 - 2¹ = 12302221320229 is a prime.

It is a super-2 number, since 2×12302221320231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302221320241) 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, 2050370220036 + ... + 2050370220041.

It is an arithmetic number, because the mean of its divisors is an integer number (4100740440078).

Almost surely, 2^{12302221320231} is an apocalyptic number.

12302221320231 is a deficient number, since it is larger than the sum of its proper divisors (4100740440081).

12302221320231 is an equidigital number, since it uses as much as digits as its factorization.

12302221320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100740440080.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12302221320231 its reverse (13202312220321), we get a palindrome (25504533540552).

The spelling of 12302221320231 in words is "twelve trillion, three hundred two billion, two hundred twenty-one million, three hundred twenty thousand, two hundred thirty-one".