12122101001200 has 90 divisors (see below), whose sum is σ = 30162231286304. Its totient is φ = 4681638877440.

The previous prime is 12122101001183. The next prime is 12122101001201. The reversal of 12122101001200 is 210010122121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122101001201) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17680992 + ... + 18353791.

Almost surely, 2^{12122101001200} is an apocalyptic number.

12122101001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122101001200 is an abundant number, since it is smaller than the sum of its proper divisors (18040130285104).

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

12122101001200 is a wasteful number, since it uses less digits than its factorization.

12122101001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36034859 (or 36034819 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12122101001200 its reverse (210010122121), we get a palindrome (12332111123321).

The spelling of 12122101001200 in words is "twelve trillion, one hundred twenty-two billion, one hundred one million, one thousand, two hundred".