22010022102221 has 2 divisors, whose sum is σ = 22010022102222. Its totient is φ = 22010022102220.

The previous prime is 22010022102181. The next prime is 22010022102227. The reversal of 22010022102221 is 12220122001022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15814453074121 + 6195569028100 = 3976739^2 + 2489090^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010022102221 - 2¹⁴ = 22010022085837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22010022102221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22010022102227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005011051110 + 11005011051111.

It is an arithmetic number, because the mean of its divisors is an integer number (11005011051111).

Almost surely, 2^{22010022102221} is an apocalyptic number.

It is an amenable number.

22010022102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

22010022102221 is an equidigital number, since it uses as much as digits as its factorization.

22010022102221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22010022102221 its reverse (12220122001022), we get a palindrome (34230144103243).

The spelling of 22010022102221 in words is "twenty-two trillion, ten billion, twenty-two million, one hundred two thousand, two hundred twenty-one".