22110102221 has 2 divisors, whose sum is σ = 22110102222. Its totient is φ = 22110102220.

The previous prime is 22110102143. The next prime is 22110102227. The reversal of 22110102221 is 12220101122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21058072996 + 1052029225 = 145114^2 + 32435^2 .

It is a cyclic number.

It is not a de Polignac number, because 22110102221 - 2¹⁰ = 22110101197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22110102196 and 22110102205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22110102227) 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, 11055051110 + 11055051111.

It is an arithmetic number, because the mean of its divisors is an integer number (11055051111).

Almost surely, 2^22110102221 is an apocalyptic number.

It is an amenable number.

22110102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22110102221 is an equidigital number, since it uses as much as digits as its factorization.

22110102221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 22110102221 its reverse (12220101122), we get a palindrome (34330203343).

The spelling of 22110102221 in words is "twenty-two billion, one hundred ten million, one hundred two thousand, two hundred twenty-one".