2200202111221 has 2 divisors, whose sum is σ = 2200202111222. Its totient is φ = 2200202111220.

The previous prime is 2200202111203. The next prime is 2200202111273. The reversal of 2200202111221 is 1221112020022.

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., 1136238743025 + 1063963368196 = 1065945^2 + 1031486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200202111221 - 2⁹ = 2200202110709 is a prime.

It is a super-2 number, since 2×2200202111221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2200202111195 and 2200202111204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200202111201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100101055610 + 1100101055611.

It is an arithmetic number, because the mean of its divisors is an integer number (1100101055611).

Almost surely, 2^{2200202111221} is an apocalyptic number.

It is an amenable number.

2200202111221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200202111221 is an equidigital number, since it uses as much as digits as its factorization.

2200202111221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2200202111221 its reverse (1221112020022), we get a palindrome (3421314131243).

The spelling of 2200202111221 in words is "two trillion, two hundred billion, two hundred two million, one hundred eleven thousand, two hundred twenty-one".