2022221202121 has 2 divisors, whose sum is σ = 2022221202122. Its totient is φ = 2022221202120.

The previous prime is 2022221202091. The next prime is 2022221202143. The reversal of 2022221202121 is 1212021222202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1947029529600 + 75191672521 = 1395360^2 + 274211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022221202121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2022221200121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011110601060 + 1011110601061.

It is an arithmetic number, because the mean of its divisors is an integer number (1011110601061).

Almost surely, 2^{2022221202121} is an apocalyptic number.

It is an amenable number.

2022221202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022221202121 is an equidigital number, since it uses as much as digits as its factorization.

2022221202121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2022221202121 its reverse (1212021222202), we get a palindrome (3234242424323).

The spelling of 2022221202121 in words is "two trillion, twenty-two billion, two hundred twenty-one million, two hundred two thousand, one hundred twenty-one".