22102022213021 has 2 divisors, whose sum is σ = 22102022213022. Its totient is φ = 22102022213020.

The previous prime is 22102022212993. The next prime is 22102022213041. The reversal of 22102022213021 is 12031222020122.

It is an a-pointer prime, because the next prime (22102022213041) can be obtained adding 22102022213021 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21068200980121 + 1033821232900 = 4590011^2 + 1016770^2 .

It is a cyclic number.

It is not a de Polignac number, because 22102022213021 - 2⁶ = 22102022212957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22102022212984 and 22102022213002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22102022213041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051011106510 + 11051011106511.

It is an arithmetic number, because the mean of its divisors is an integer number (11051011106511).

Almost surely, 2^{22102022213021} is an apocalyptic number.

It is an amenable number.

22102022213021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102022213021 is an equidigital number, since it uses as much as digits as its factorization.

22102022213021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22102022213021 its reverse (12031222020122), we get a palindrome (34133244233143).

The spelling of 22102022213021 in words is "twenty-two trillion, one hundred two billion, twenty-two million, two hundred thirteen thousand, twenty-one".