1021222002079 has 2 divisors, whose sum is σ = 1021222002080. Its totient is φ = 1021222002078.

The previous prime is 1021222002077. The next prime is 1021222002083. The reversal of 1021222002079 is 9702002221201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021222002079 - 2¹ = 1021222002077 is a prime.

Together with 1021222002077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021222002077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510611001039 + 510611001040.

It is an arithmetic number, because the mean of its divisors is an integer number (510611001040).

Almost surely, 2^{1021222002079} is an apocalyptic number.

1021222002079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021222002079 is an equidigital number, since it uses as much as digits as its factorization.

1021222002079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 1021222002079 in words is "one trillion, twenty-one billion, two hundred twenty-two million, two thousand, seventy-nine".