1002021100979 has 2 divisors, whose sum is σ = 1002021100980. Its totient is φ = 1002021100978.

The previous prime is 1002021100937. The next prime is 1002021101017. The reversal of 1002021100979 is 9790011202001.

It is a strong prime.

It is an emirp because it is prime and its reverse (9790011202001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002021100979 - 2²⁰ = 1002020052403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002021100919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501010550489 + 501010550490.

It is an arithmetic number, because the mean of its divisors is an integer number (501010550490).

Almost surely, 2^{1002021100979} is an apocalyptic number.

1002021100979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002021100979 is an equidigital number, since it uses as much as digits as its factorization.

1002021100979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 1002021100979 in words is "one trillion, two billion, twenty-one million, one hundred thousand, nine hundred seventy-nine".