122021001021979 has 2 divisors, whose sum is σ = 122021001021980. Its totient is φ = 122021001021978.

The previous prime is 122021001021923. The next prime is 122021001022049. The reversal of 122021001021979 is 979120100120221.

It is a weak prime.

It is an emirp because it is prime and its reverse (979120100120221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122021001021979 - 2¹⁹ = 122021000497691 is a prime.

It is not a weakly prime, because it can be changed into another prime (122021001021079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010500510989 + 61010500510990.

It is an arithmetic number, because the mean of its divisors is an integer number (61010500510990).

Almost surely, 2^{122021001021979} is an apocalyptic number.

122021001021979 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021001021979 is an equidigital number, since it uses as much as digits as its factorization.

122021001021979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 122021001021979 in words is "one hundred twenty-two trillion, twenty-one billion, one million, twenty-one thousand, nine hundred seventy-nine".