13221122202 has 12 divisors (see below), whose sum is σ = 28645764810. Its totient is φ = 4407040728.

The previous prime is 13221122171. The next prime is 13221122293. The reversal of 13221122202 is 20222112231.

It can be written as a sum of positive squares in only one way, i.e., 10869939081 + 2351183121 = 104259^2 + 48489^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 734506789 = 13221122202 / (1 + 3 + 2 + 2 + 1 + 1 + 2 + 2 + 2 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367253377 + ... + 367253412.

Almost surely, 2^13221122202 is an apocalyptic number.

13221122202 is an abundant number, since it is smaller than the sum of its proper divisors (15424642608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221122202 is a wasteful number, since it uses less digits than its factorization.

13221122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734506797 (or 734506794 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13221122202 its reverse (20222112231), we get a palindrome (33443234433).

The spelling of 13221122202 in words is "thirteen billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred two".