12220322330231 has 4 divisors (see below), whose sum is σ = 12221460915672. Its totient is φ = 12219183744792.

The previous prime is 12220322330219. The next prime is 12220322330239. The reversal of 12220322330231 is 13203322302221.

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-12220322330231 is a prime.

It is a super-2 number, since 2×12220322330231² (a number of 27 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 12220322330231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220322330239) 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, 569276621 + ... + 569298086.

It is an arithmetic number, because the mean of its divisors is an integer number (3055365228918).

Almost surely, 2^{12220322330231} is an apocalyptic number.

12220322330231 is a deficient number, since it is larger than the sum of its proper divisors (1138585441).

12220322330231 is a wasteful number, since it uses less digits than its factorization.

12220322330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138585440.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 12220322330231 its reverse (13203322302221), we get a palindrome (25423644632452).

The spelling of 12220322330231 in words is "twelve trillion, two hundred twenty billion, three hundred twenty-two million, three hundred thirty thousand, two hundred thirty-one".