202200202211221 has 12 divisors (see below), whose sum is σ = 208135965136512. Its totient is φ = 196429366279728.

The previous prime is 202200202211209. The next prime is 202200202211387. The reversal of 202200202211221 is 122112202002202.

It is not a de Polignac number, because 202200202211221 - 2¹⁹ = 202200201686933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202200202011221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113971365 + ... + 115731898.

It is an arithmetic number, because the mean of its divisors is an integer number (17344663761376).

Almost surely, 2^{202200202211221} is an apocalyptic number.

It is an amenable number.

202200202211221 is a deficient number, since it is larger than the sum of its proper divisors (5935762925291).

202200202211221 is an equidigital number, since it uses as much as digits as its factorization.

202200202211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229703980 (or 229703943 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202200202211221 its reverse (122112202002202), we get a palindrome (324312404213423).

The spelling of 202200202211221 in words is "two hundred two trillion, two hundred billion, two hundred two million, two hundred eleven thousand, two hundred twenty-one".