222303320013221 has 4 divisors (see below), whose sum is σ = 223027435062432. Its totient is φ = 221579204964012.

The previous prime is 222303320013211. The next prime is 222303320013293. The reversal of 222303320013221 is 122310023303222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222303320013221 - 2³⁴ = 222286140144037 is a prime.

It is a super-2 number, since 2×222303320013221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222303320013211) 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, 362057524145 + ... + 362057524758.

It is an arithmetic number, because the mean of its divisors is an integer number (55756858765608).

Almost surely, 2^{222303320013221} is an apocalyptic number.

It is an amenable number.

222303320013221 is a deficient number, since it is larger than the sum of its proper divisors (724115049211).

222303320013221 is an equidigital number, since it uses as much as digits as its factorization.

222303320013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724115049210.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 222303320013221 its reverse (122310023303222), we get a palindrome (344613343316443).

The spelling of 222303320013221 in words is "two hundred twenty-two trillion, three hundred three billion, three hundred twenty million, thirteen thousand, two hundred twenty-one".