1021422168797 has 2 divisors, whose sum is σ = 1021422168798. Its totient is φ = 1021422168796.

The previous prime is 1021422168773. The next prime is 1021422168817. The reversal of 1021422168797 is 7978612241201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 671840876281 + 349581292516 = 819659^2 + 591254^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021422168797 - 2⁶ = 1021422168733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021422161797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510711084398 + 510711084399.

It is an arithmetic number, because the mean of its divisors is an integer number (510711084399).

Almost surely, 2^{1021422168797} is an apocalyptic number.

It is an amenable number.

1021422168797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021422168797 is an equidigital number, since it uses as much as digits as its factorization.

1021422168797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 1021422168797 in words is "one trillion, twenty-one billion, four hundred twenty-two million, one hundred sixty-eight thousand, seven hundred ninety-seven".