13222221331 has 4 divisors (see below), whose sum is σ = 14424241464. Its totient is φ = 12020201200.

The previous prime is 13222221307. The next prime is 13222221361. The reversal of 13222221331 is 13312222231.

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 13222221331 - 2¹⁵ = 13222188563 is a prime.

It is a super-2 number, since 2×13222221331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13222221361) 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, 601010050 + ... + 601010071.

It is an arithmetic number, because the mean of its divisors is an integer number (3606060366).

Almost surely, 2^13222221331 is an apocalyptic number.

13222221331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13222221331 is a deficient number, since it is larger than the sum of its proper divisors (1202020133).

13222221331 is a wasteful number, since it uses less digits than its factorization.

13222221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202020132.

The product of its digits is 864, while the sum is 22.

Adding to 13222221331 its reverse (13312222231), we get a palindrome (26534443562).

The spelling of 13222221331 in words is "thirteen billion, two hundred twenty-two million, two hundred twenty-one thousand, three hundred thirty-one".