12212210112 has 28 divisors (see below), whose sum is σ = 32311473096. Its totient is φ = 4070736640.

The previous prime is 12212210053. The next prime is 12212210147. The reversal of 12212210112 is 21101221221.

It is a junction number, because it is equal to n+sod(n) for n = 12212210091 and 12212210100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31802439 + ... + 31802822.

It is an arithmetic number, because the mean of its divisors is an integer number (1153981182).

Almost surely, 2^12212210112 is an apocalyptic number.

12212210112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212210112 is an abundant number, since it is smaller than the sum of its proper divisors (20099262984).

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

12212210112 is an equidigital number, since it uses as much as digits as its factorization.

12212210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63605276 (or 63605266 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12212210112 its reverse (21101221221), we get a palindrome (33313431333).

The spelling of 12212210112 in words is "twelve billion, two hundred twelve million, two hundred ten thousand, one hundred twelve".