2122112211979 has 2 divisors, whose sum is σ = 2122112211980. Its totient is φ = 2122112211978.

The previous prime is 2122112211971. The next prime is 2122112212019. The reversal of 2122112211979 is 9791122112212.

It is a happy number.

It is an a-pointer prime, because the next prime (2122112212019) can be obtained adding 2122112211979 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122112211979 - 2³ = 2122112211971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122112211971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061056105989 + 1061056105990.

It is an arithmetic number, because the mean of its divisors is an integer number (1061056105990).

Almost surely, 2^{2122112211979} is an apocalyptic number.

2122112211979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122112211979 is an equidigital number, since it uses as much as digits as its factorization.

2122112211979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 40.

The spelling of 2122112211979 in words is "two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred eleven thousand, nine hundred seventy-nine".