13223113212 has 24 divisors (see below), whose sum is σ = 30855952512. Its totient is φ = 4407415600.

The previous prime is 13223113199. The next prime is 13223113249. The reversal of 13223113212 is 21231132231.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237787 + ... + 288077.

It is an arithmetic number, because the mean of its divisors is an integer number (1285664688).

Almost surely, 2^13223113212 is an apocalyptic number.

13223113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13223113212 is an abundant number, since it is smaller than the sum of its proper divisors (17632839300).

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

13223113212 is a wasteful number, since it uses less digits than its factorization.

13223113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72209 (or 72207 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 13223113212 its reverse (21231132231), we get a palindrome (34454245443).

The spelling of 13223113212 in words is "thirteen billion, two hundred twenty-three million, one hundred thirteen thousand, two hundred twelve".