2122009979 has 2 divisors, whose sum is σ = 2122009980. Its totient is φ = 2122009978.

The previous prime is 2122009963. The next prime is 2122009991. The reversal of 2122009979 is 9799002212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122009979 - 2⁴ = 2122009963 is a prime.

It is not a weakly prime, because it can be changed into another prime (2122009999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061004989 + 1061004990.

It is an arithmetic number, because the mean of its divisors is an integer number (1061004990).

Almost surely, 2^2122009979 is an apocalyptic number.

2122009979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122009979 is an equidigital number, since it uses as much as digits as its factorization.

2122009979 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 41.

The square root of 2122009979 is about 46065.2795389326. The cubic root of 2122009979 is about 1285.0375173127.

The spelling of 2122009979 in words is "two billion, one hundred twenty-two million, nine thousand, nine hundred seventy-nine".