12210321112 has 32 divisors (see below), whose sum is σ = 25000494480. Its totient is φ = 5544626560.

The previous prime is 12210321083. The next prime is 12210321119. The reversal of 12210321112 is 21112301221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210321119) 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, 20658 + ... + 157630.

Almost surely, 2^12210321112 is an apocalyptic number.

It is an amenable number.

12210321112 is an abundant number, since it is smaller than the sum of its proper divisors (12790173368).

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

12210321112 is a wasteful number, since it uses less digits than its factorization.

12210321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138003 (or 137999 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12210321112 its reverse (21112301221), we get a palindrome (33322622333).

The spelling of 12210321112 in words is "twelve billion, two hundred ten million, three hundred twenty-one thousand, one hundred twelve".