2022121021993 has 2 divisors, whose sum is σ = 2022121021994. Its totient is φ = 2022121021992.

The previous prime is 2022121021913. The next prime is 2022121022017. The reversal of 2022121021993 is 3991201212202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002870291984 + 19250730009 = 1415228^2 + 138747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022121021993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2022121021903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011060510996 + 1011060510997.

It is an arithmetic number, because the mean of its divisors is an integer number (1011060510997).

Almost surely, 2^{2022121021993} is an apocalyptic number.

It is an amenable number.

2022121021993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022121021993 is an equidigital number, since it uses as much as digits as its factorization.

2022121021993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 2022121021993 in words is "two trillion, twenty-two billion, one hundred twenty-one million, twenty-one thousand, nine hundred ninety-three".