22101013222021 has 2 divisors, whose sum is σ = 22101013222022. Its totient is φ = 22101013222020.

The previous prime is 22101013221983. The next prime is 22101013222039. The reversal of 22101013222021 is 12022231010122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21255926472225 + 845086749796 = 4610415^2 + 919286^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101013222021 - 2³¹ = 22098865738373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22101013222021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101013220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050506611010 + 11050506611011.

It is an arithmetic number, because the mean of its divisors is an integer number (11050506611011).

Almost surely, 2^{22101013222021} is an apocalyptic number.

It is an amenable number.

22101013222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101013222021 is an equidigital number, since it uses as much as digits as its factorization.

22101013222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22101013222021 its reverse (12022231010122), we get a palindrome (34123244232143).

The spelling of 22101013222021 in words is "twenty-two trillion, one hundred one billion, thirteen million, two hundred twenty-two thousand, twenty-one".