12155102200 has 24 divisors (see below), whose sum is σ = 28260613080. Its totient is φ = 4862040800.

The previous prime is 12155102173. The next prime is 12155102209. The reversal of 12155102200 is 220155121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155102209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30387556 + ... + 30387955.

It is an arithmetic number, because the mean of its divisors is an integer number (1177525545).

Almost surely, 2^12155102200 is an apocalyptic number.

12155102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12155102200 is an abundant number, since it is smaller than the sum of its proper divisors (16105510880).

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

12155102200 is a wasteful number, since it uses less digits than its factorization.

12155102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60775527 (or 60775518 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 12155102200 its reverse (220155121), we get a palindrome (12375257321).

The spelling of 12155102200 in words is "twelve billion, one hundred fifty-five million, one hundred two thousand, two hundred".