12135224112 has 40 divisors (see below), whose sum is σ = 34199269440. Its totient is φ = 3677340480.

The previous prime is 12135224111. The next prime is 12135224113. The reversal of 12135224112 is 21142253121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12135224111) and next prime (12135224113).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12135224111) 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, 11491162 + ... + 11492217.

It is an arithmetic number, because the mean of its divisors is an integer number (854981736).

Almost surely, 2^12135224112 is an apocalyptic number.

12135224112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12135224112 is an abundant number, since it is smaller than the sum of its proper divisors (22064045328).

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

12135224112 is a wasteful number, since it uses less digits than its factorization.

12135224112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22983401 (or 22983395 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

Adding to 12135224112 its reverse (21142253121), we get a palindrome (33277477233).

The spelling of 12135224112 in words is "twelve billion, one hundred thirty-five million, two hundred twenty-four thousand, one hundred twelve".