2200022112221 has 2 divisors, whose sum is σ = 2200022112222. Its totient is φ = 2200022112220.

The previous prime is 2200022112181. The next prime is 2200022112271. The reversal of 2200022112221 is 1222112200022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2156418825625 + 43603286596 = 1468475^2 + 208814^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200022112221 - 2¹⁰ = 2200022111197 is a prime.

It is a super-2 number, since 2×2200022112221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2200022112221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200022112271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100011056110 + 1100011056111.

It is an arithmetic number, because the mean of its divisors is an integer number (1100011056111).

Almost surely, 2^{2200022112221} is an apocalyptic number.

It is an amenable number.

2200022112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200022112221 is an equidigital number, since it uses as much as digits as its factorization.

2200022112221 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 2200022112221 its reverse (1222112200022), we get a palindrome (3422134312243).

The spelling of 2200022112221 in words is "two trillion, two hundred billion, twenty-two million, one hundred twelve thousand, two hundred twenty-one".