12221362843 has 2 divisors, whose sum is σ = 12221362844. Its totient is φ = 12221362842.

The previous prime is 12221362831. The next prime is 12221362847. The reversal of 12221362843 is 34826312221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221362843 is a prime.

It is a super-2 number, since 2×12221362843² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221362799 and 12221362808.

It is not a weakly prime, because it can be changed into another prime (12221362847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110681421 + 6110681422.

It is an arithmetic number, because the mean of its divisors is an integer number (6110681422).

Almost surely, 2^12221362843 is an apocalyptic number.

12221362843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221362843 is an equidigital number, since it uses as much as digits as its factorization.

12221362843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 34.

The spelling of 12221362843 in words is "twelve billion, two hundred twenty-one million, three hundred sixty-two thousand, eight hundred forty-three".