22102002101021 has 2 divisors, whose sum is σ = 22102002101022. Its totient is φ = 22102002101020.

The previous prime is 22102002100957. The next prime is 22102002101027. The reversal of 22102002101021 is 12010120020122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22004411464996 + 97590636025 = 4690886^2 + 312395^2 .

It is a cyclic number.

It is not a de Polignac number, because 22102002101021 - 2⁶ = 22102002100957 is a prime.

It is a super-3 number, since 3×22102002101021³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22102002100987 and 22102002101005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22102002101027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051001050510 + 11051001050511.

It is an arithmetic number, because the mean of its divisors is an integer number (11051001050511).

Almost surely, 2^{22102002101021} is an apocalyptic number.

It is an amenable number.

22102002101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102002101021 is an equidigital number, since it uses as much as digits as its factorization.

22102002101021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22102002101021 its reverse (12010120020122), we get a palindrome (34112122121143).

The spelling of 22102002101021 in words is "twenty-two trillion, one hundred two billion, two million, one hundred one thousand, twenty-one".