12221129959 has 2 divisors, whose sum is σ = 12221129960. Its totient is φ = 12221129958.

The previous prime is 12221129957. The next prime is 12221130013. The reversal of 12221129959 is 95992112221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12221129959 - 2¹ = 12221129957 is a prime.

Together with 12221129957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221129953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110564979 + 6110564980.

It is an arithmetic number, because the mean of its divisors is an integer number (6110564980).

Almost surely, 2^12221129959 is an apocalyptic number.

12221129959 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221129959 is an equidigital number, since it uses as much as digits as its factorization.

12221129959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 43.

The spelling of 12221129959 in words is "twelve billion, two hundred twenty-one million, one hundred twenty-nine thousand, nine hundred fifty-nine".