22221202212313 has 4 divisors (see below), whose sum is σ = 23930525459428. Its totient is φ = 20511878965200.

The previous prime is 22221202212299. The next prime is 22221202212331. The reversal of 22221202212313 is 31321220212222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10629608254864 + 11591593957449 = 3260308^2 + 3404643^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221202212313 - 2¹³ = 22221202204121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22221202212413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854661623538 + ... + 854661623563.

It is an arithmetic number, because the mean of its divisors is an integer number (5982631364857).

Almost surely, 2^{22221202212313} is an apocalyptic number.

It is an amenable number.

22221202212313 is a deficient number, since it is larger than the sum of its proper divisors (1709323247115).

22221202212313 is a wasteful number, since it uses less digits than its factorization.

22221202212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709323247114.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 22221202212313 its reverse (31321220212222), we get a palindrome (53542422424535).

The spelling of 22221202212313 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred two million, two hundred twelve thousand, three hundred thirteen".