11222109979 has 2 divisors, whose sum is σ = 11222109980. Its totient is φ = 11222109978.

The previous prime is 11222109931. The next prime is 11222109991. The reversal of 11222109979 is 97990122211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11222109979 - 2²¹ = 11220012827 is a prime.

It is not a weakly prime, because it can be changed into another prime (11222109079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611054989 + 5611054990.

It is an arithmetic number, because the mean of its divisors is an integer number (5611054990).

Almost surely, 2^11222109979 is an apocalyptic number.

11222109979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222109979 is an equidigital number, since it uses as much as digits as its factorization.

11222109979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 11222109979 in words is "eleven billion, two hundred twenty-two million, one hundred nine thousand, nine hundred seventy-nine".