202222222121321 has 12 divisors (see below), whose sum is σ = 209437022313792. Its totient is φ = 195247955373744.

The previous prime is 202222222121167. The next prime is 202222222121347. The reversal of 202222222121321 is 123121222222202.

It is not a de Polignac number, because 202222222121321 - 2¹⁰ = 202222222120297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202222222126321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179283116 + ... + 180407538.

It is an arithmetic number, because the mean of its divisors is an integer number (17453085192816).

Almost surely, 2^{202222222121321} is an apocalyptic number.

It is an amenable number.

202222222121321 is a deficient number, since it is larger than the sum of its proper divisors (7214800192471).

202222222121321 is a wasteful number, since it uses less digits than its factorization.

202222222121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338328 (or 1338299 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 202222222121321 its reverse (123121222222202), we get a palindrome (325343444343523).

The spelling of 202222222121321 in words is "two hundred two trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, three hundred twenty-one".