12220343431 has 2 divisors, whose sum is σ = 12220343432. Its totient is φ = 12220343430.

The previous prime is 12220343407. The next prime is 12220343467. The reversal of 12220343431 is 13434302221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12220343431 - 2⁹ = 12220342919 is a prime.

It is a super-2 number, since 2×12220343431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220343396 and 12220343405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220343131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110171715 + 6110171716.

It is an arithmetic number, because the mean of its divisors is an integer number (6110171716).

Almost surely, 2^12220343431 is an apocalyptic number.

12220343431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220343431 is an equidigital number, since it uses as much as digits as its factorization.

12220343431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12220343431 its reverse (13434302221), we get a palindrome (25654645652).

The spelling of 12220343431 in words is "twelve billion, two hundred twenty million, three hundred forty-three thousand, four hundred thirty-one".