13222021330231 has 4 divisors (see below), whose sum is σ = 15110881520272. Its totient is φ = 11333161140192.

The previous prime is 13222021330211. The next prime is 13222021330249. The reversal of 13222021330231 is 13203312022231.

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

It is a cyclic number.

It is not a de Polignac number, because 13222021330231 - 2¹⁷ = 13222021199159 is a prime.

It is a super-2 number, since 2×13222021330231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13222021330196 and 13222021330205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222021330201) 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, 944430095010 + ... + 944430095023.

It is an arithmetic number, because the mean of its divisors is an integer number (3777720380068).

Almost surely, 2^{13222021330231} is an apocalyptic number.

13222021330231 is a deficient number, since it is larger than the sum of its proper divisors (1888860190041).

13222021330231 is an equidigital number, since it uses as much as digits as its factorization.

13222021330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888860190040.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13222021330231 its reverse (13203312022231), we get a palindrome (26425333352462).

The spelling of 13222021330231 in words is "thirteen trillion, two hundred twenty-two billion, twenty-one million, three hundred thirty thousand, two hundred thirty-one".