22321023010021 has 2 divisors, whose sum is σ = 22321023010022. Its totient is φ = 22321023010020.

The previous prime is 22321023010019. The next prime is 22321023010043. The reversal of 22321023010021 is 12001032012322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22277503209025 + 43519800996 = 4719905^2 + 208614^2 .

It is a cyclic number.

It is not a de Polignac number, because 22321023010021 - 2¹ = 22321023010019 is a prime.

It is a super-3 number, since 3×22321023010021³ (a number of 41 digits) contains 333 as substring.

Together with 22321023010019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22321023013021) 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, 11160511505010 + 11160511505011.

It is an arithmetic number, because the mean of its divisors is an integer number (11160511505011).

Almost surely, 2^{22321023010021} is an apocalyptic number.

It is an amenable number.

22321023010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22321023010021 is an equidigital number, since it uses as much as digits as its factorization.

22321023010021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22321023010021 its reverse (12001032012322), we get a palindrome (34322055022343).

The spelling of 22321023010021 in words is "twenty-two trillion, three hundred twenty-one billion, twenty-three million, ten thousand, twenty-one".