12012204120 has 128 divisors (see below), whose sum is σ = 41882918400. Its totient is φ = 2699099136.

The previous prime is 12012204107. The next prime is 12012204121. The reversal of 12012204120 is 2140221021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12012204120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012204121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71629 + ... + 170748.

It is an arithmetic number, because the mean of its divisors is an integer number (327210300).

Almost surely, 2^12012204120 is an apocalyptic number.

12012204120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012204120 is an abundant number, since it is smaller than the sum of its proper divisors (29870714280).

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

12012204120 is a wasteful number, since it uses less digits than its factorization.

12012204120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242457 (or 242453 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12012204120 its reverse (2140221021), we get a palindrome (14152425141).

The spelling of 12012204120 in words is "twelve billion, twelve million, two hundred four thousand, one hundred twenty".