2022121012921 has 2 divisors, whose sum is σ = 2022121012922. Its totient is φ = 2022121012920.

The previous prime is 2022121012867. The next prime is 2022121012963. The reversal of 2022121012921 is 1292101212202.

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., 1252913080896 + 769207932025 = 1119336^2 + 877045^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022121012921 - 2¹¹ = 2022121010873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2022121012991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011060506460 + 1011060506461.

It is an arithmetic number, because the mean of its divisors is an integer number (1011060506461).

Almost surely, 2^{2022121012921} is an apocalyptic number.

It is an amenable number.

2022121012921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022121012921 is an equidigital number, since it uses as much as digits as its factorization.

2022121012921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 2022121012921 in words is "two trillion, twenty-two billion, one hundred twenty-one million, twelve thousand, nine hundred twenty-one".