12120200120 has 32 divisors (see below), whose sum is σ = 31166229600. Its totient is φ = 4155497088.

The previous prime is 12120200119. The next prime is 12120200161. The reversal of 12120200120 is 2100202121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21642935 + ... + 21643494.

It is an arithmetic number, because the mean of its divisors is an integer number (973944675).

Almost surely, 2^12120200120 is an apocalyptic number.

12120200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120200120 is an abundant number, since it is smaller than the sum of its proper divisors (19046029480).

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

12120200120 is a wasteful number, since it uses less digits than its factorization.

12120200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43286447 (or 43286443 counting only the distinct ones).

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

Adding to 12120200120 its reverse (2100202121), we get a palindrome (14220402241).

The spelling of 12120200120 in words is "twelve billion, one hundred twenty million, two hundred thousand, one hundred twenty".