1022001019979 has 2 divisors, whose sum is σ = 1022001019980. Its totient is φ = 1022001019978.

The previous prime is 1022001019967. The next prime is 1022001020021. The reversal of 1022001019979 is 9799101002201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022001019979 - 2⁸ = 1022001019723 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022001019379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511000509989 + 511000509990.

It is an arithmetic number, because the mean of its divisors is an integer number (511000509990).

Almost surely, 2^{1022001019979} is an apocalyptic number.

1022001019979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022001019979 is an equidigital number, since it uses as much as digits as its factorization.

1022001019979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 41.

The spelling of 1022001019979 in words is "one trillion, twenty-two billion, one million, nineteen thousand, nine hundred seventy-nine".