222131201321 has 4 divisors (see below), whose sum is σ = 233822317200. Its totient is φ = 210440085444.

The previous prime is 222131201309. The next prime is 222131201333. The reversal of 222131201321 is 123102131222.

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 an interprime number because it is at equal distance from previous prime (222131201309) and next prime (222131201333).

It is a cyclic number.

It is not a de Polignac number, because 222131201321 - 2³⁴ = 204951332137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222131201293 and 222131201302.

It is not an unprimeable number, because it can be changed into a prime (222131206321) 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 in 3 ways as a sum of consecutive naturals, for example, 5845557911 + ... + 5845557948.

It is an arithmetic number, because the mean of its divisors is an integer number (58455579300).

Almost surely, 2^222131201321 is an apocalyptic number.

It is an amenable number.

222131201321 is a deficient number, since it is larger than the sum of its proper divisors (11691115879).

222131201321 is a wasteful number, since it uses less digits than its factorization.

222131201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11691115878.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 222131201321 its reverse (123102131222), we get a palindrome (345233332543).

The spelling of 222131201321 in words is "two hundred twenty-two billion, one hundred thirty-one million, two hundred one thousand, three hundred twenty-one".