2002202109979 has 2 divisors, whose sum is σ = 2002202109980. Its totient is φ = 2002202109978.

The previous prime is 2002202109977. The next prime is 2002202110003. The reversal of 2002202109979 is 9799012022002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002202109979 - 2¹ = 2002202109977 is a prime.

It is a super-2 number, since 2×2002202109979² (a number of 25 digits) contains 22 as substring.

Together with 2002202109977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2002202109977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001101054989 + 1001101054990.

It is an arithmetic number, because the mean of its divisors is an integer number (1001101054990).

Almost surely, 2^{2002202109979} is an apocalyptic number.

2002202109979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002202109979 is an equidigital number, since it uses as much as digits as its factorization.

2002202109979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 2002202109979 in words is "two trillion, two billion, two hundred two million, one hundred nine thousand, nine hundred seventy-nine".