12012200120 has 32 divisors (see below), whose sum is σ = 27031551120. Its totient is φ = 4804151040.

The previous prime is 12012200117. The next prime is 12012200143. The reversal of 12012200120 is 2100221021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 300935 + ... + 338505.

Almost surely, 2^12012200120 is an apocalyptic number.

12012200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012200120 is an abundant number, since it is smaller than the sum of its proper divisors (15019351000).

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

12012200120 is a wasteful number, since it uses less digits than its factorization.

12012200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45575 (or 45571 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12012200120 its reverse (2100221021), we get a palindrome (14112421141).

The spelling of 12012200120 in words is "twelve billion, twelve million, two hundred thousand, one hundred twenty".