12012220112 has 20 divisors (see below), whose sum is σ = 23276608416. Its totient is φ = 6005353440.

The previous prime is 12012220093. The next prime is 12012220127. The reversal of 12012220112 is 21102221021.

It is a super-3 number, since 3×12012220112³ (a number of 31 digits) contains 333 as substring.

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, 97037 + ... + 182867.

Almost surely, 2^12012220112 is an apocalyptic number.

It is an amenable number.

12012220112 is a deficient number, since it is larger than the sum of its proper divisors (11264388304).

12012220112 is an equidigital number, since it uses as much as digits as its factorization.

12012220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94586 (or 94580 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012220112 its reverse (21102221021), we get a palindrome (33114441133).

Subtracting 12012220112 from its reverse (21102221021), we obtain a palindrome (9090000909).

The spelling of 12012220112 in words is "twelve billion, twelve million, two hundred twenty thousand, one hundred twelve".