12220340431 has 8 divisors (see below), whose sum is σ = 13263993344. Its totient is φ = 11191491360.

The previous prime is 12220340417. The next prime is 12220340449. The reversal of 12220340431 is 13404302221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12220340431 - 2³³ = 3630405839 is a prime.

It is a super-2 number, since 2×12220340431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220340831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3699240 + ... + 3702541.

It is an arithmetic number, because the mean of its divisors is an integer number (1657999168).

Almost surely, 2^12220340431 is an apocalyptic number.

12220340431 is a deficient number, since it is larger than the sum of its proper divisors (1043652913).

12220340431 is a wasteful number, since it uses less digits than its factorization.

12220340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7401921.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12220340431 its reverse (13404302221), we get a palindrome (25624642652).

The spelling of 12220340431 in words is "twelve billion, two hundred twenty million, three hundred forty thousand, four hundred thirty-one".