12120402200 has 48 divisors (see below), whose sum is σ = 28470495480. Its totient is φ = 4798172160.

The previous prime is 12120402197. The next prime is 12120402221. The reversal of 12120402200 is 220402121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292982 + ... + 331781.

Almost surely, 2^12120402200 is an apocalyptic number.

12120402200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120402200 is an abundant number, since it is smaller than the sum of its proper divisors (16350093280).

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

12120402200 is a wasteful number, since it uses less digits than its factorization.

12120402200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624876 (or 624867 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12120402200 its reverse (220402121), we get a palindrome (12340804321).

The spelling of 12120402200 in words is "twelve billion, one hundred twenty million, four hundred two thousand, two hundred".