1011022021979 has 2 divisors, whose sum is σ = 1011022021980. Its totient is φ = 1011022021978.

The previous prime is 1011022021969. The next prime is 1011022022047. The reversal of 1011022021979 is 9791202201101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011022021979 - 2¹⁶ = 1011021956443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011022021909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505511010989 + 505511010990.

It is an arithmetic number, because the mean of its divisors is an integer number (505511010990).

Almost surely, 2^{1011022021979} is an apocalyptic number.

1011022021979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011022021979 is an equidigital number, since it uses as much as digits as its factorization.

1011022021979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 1011022021979 in words is "one trillion, eleven billion, twenty-two million, twenty-one thousand, nine hundred seventy-nine".