2110221111979 has 2 divisors, whose sum is σ = 2110221111980. Its totient is φ = 2110221111978.

The previous prime is 2110221111967. The next prime is 2110221112003. The reversal of 2110221111979 is 9791111220112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110221111979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2110221211979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055110555989 + 1055110555990.

It is an arithmetic number, because the mean of its divisors is an integer number (1055110555990).

Almost surely, 2^{2110221111979} is an apocalyptic number.

2110221111979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110221111979 is an equidigital number, since it uses as much as digits as its factorization.

2110221111979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 37.

The spelling of 2110221111979 in words is "two trillion, one hundred ten billion, two hundred twenty-one million, one hundred eleven thousand, nine hundred seventy-nine".