12120112 has 10 divisors (see below), whose sum is σ = 23482748. Its totient is φ = 6060048.

The previous prime is 12120091. The next prime is 12120179. The reversal of 12120112 is 21102121.

It is a super-2 number, since 2×12120112² = 293794229785088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378738 + ... + 378769.

Almost surely, 2^12120112 is an apocalyptic number.

It is an amenable number.

12120112 is a deficient number, since it is larger than the sum of its proper divisors (11362636).

12120112 is an equidigital number, since it uses as much as digits as its factorization.

12120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757515 (or 757509 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12120112 is about 3481.3951226484. The cubic root of 12120112 is about 229.7041691236.

Adding to 12120112 its reverse (21102121), we get a palindrome (33222233).

Subtracting 12120112 from its reverse (21102121), we obtain a square (8982009 = 2997²).

The spelling of 12120112 in words is "twelve million, one hundred twenty thousand, one hundred twelve".