22213203223021 has 2 divisors, whose sum is σ = 22213203223022. Its totient is φ = 22213203223020.

The previous prime is 22213203222997. The next prime is 22213203223093. The reversal of 22213203223021 is 12032230231222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18640063647396 + 3573139575625 = 4317414^2 + 1890275^2 .

It is a cyclic number.

It is not a de Polignac number, because 22213203223021 - 2⁷ = 22213203222893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22213203223121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106601611510 + 11106601611511.

It is an arithmetic number, because the mean of its divisors is an integer number (11106601611511).

Almost surely, 2^{22213203223021} is an apocalyptic number.

It is an amenable number.

22213203223021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22213203223021 is an equidigital number, since it uses as much as digits as its factorization.

22213203223021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 22213203223021 its reverse (12032230231222), we get a palindrome (34245433454243).

The spelling of 22213203223021 in words is "twenty-two trillion, two hundred thirteen billion, two hundred three million, two hundred twenty-three thousand, twenty-one".