13212223112 has 32 divisors (see below), whose sum is σ = 27042487200. Its totient is φ = 6001670400.

The previous prime is 13212223069. The next prime is 13212223117. The reversal of 13212223112 is 21132221231.

It is a super-2 number, since 2×13212223112² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13212223117) 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, 90464 + ... + 186032.

It is an arithmetic number, because the mean of its divisors is an integer number (845077725).

Almost surely, 2^13212223112 is an apocalyptic number.

It is an amenable number.

13212223112 is an abundant number, since it is smaller than the sum of its proper divisors (13830264088).

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

13212223112 is a wasteful number, since it uses less digits than its factorization.

13212223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97157 (or 97153 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 13212223112 its reverse (21132221231), we get a palindrome (34344444343).

The spelling of 13212223112 in words is "thirteen billion, two hundred twelve million, two hundred twenty-three thousand, one hundred twelve".