12211110979 has 2 divisors, whose sum is σ = 12211110980. Its totient is φ = 12211110978.

The previous prime is 12211110959. The next prime is 12211111021. The reversal of 12211110979 is 97901111221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12211110979 - 2¹⁹ = 12210586691 is a prime.

It is a super-2 number, since 2×12211110979² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12211110959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105555489 + 6105555490.

It is an arithmetic number, because the mean of its divisors is an integer number (6105555490).

Almost surely, 2^12211110979 is an apocalyptic number.

12211110979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211110979 is an equidigital number, since it uses as much as digits as its factorization.

12211110979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 34.

The spelling of 12211110979 in words is "twelve billion, two hundred eleven million, one hundred ten thousand, nine hundred seventy-nine".