211112122979 has 2 divisors, whose sum is σ = 211112122980. Its totient is φ = 211112122978.

The previous prime is 211112122967. The next prime is 211112122999. The reversal of 211112122979 is 979221211112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211112122979 - 2⁸ = 211112122723 is a prime.

It is not a weakly prime, because it can be changed into another prime (211112122999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105556061489 + 105556061490.

It is an arithmetic number, because the mean of its divisors is an integer number (105556061490).

Almost surely, 2^211112122979 is an apocalyptic number.

211112122979 is a deficient number, since it is larger than the sum of its proper divisors (1).

211112122979 is an equidigital number, since it uses as much as digits as its factorization.

211112122979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 38.

The spelling of 211112122979 in words is "two hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, nine hundred seventy-nine".