13322221221 has 8 divisors (see below), whose sum is σ = 18243041824. Its totient is φ = 8641440720.

The previous prime is 13322221177. The next prime is 13322221223. The reversal of 13322221221 is 12212222331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13322221221 - 2¹¹ = 13322219173 is a prime.

It is a super-2 number, since 2×13322221221² (a number of 21 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 (13322221223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60009895 + ... + 60010116.

It is an arithmetic number, because the mean of its divisors is an integer number (2280380228).

Almost surely, 2^13322221221 is an apocalyptic number.

It is an amenable number.

13322221221 is a deficient number, since it is larger than the sum of its proper divisors (4920820603).

13322221221 is a wasteful number, since it uses less digits than its factorization.

13322221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120020051.

The product of its digits is 576, while the sum is 21.

Adding to 13322221221 its reverse (12212222331), we get a palindrome (25534443552).

The spelling of 13322221221 in words is "thirteen billion, three hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".