12201220111100 has 36 divisors (see below), whose sum is σ = 26685125209344. Its totient is φ = 4842058999680.

The previous prime is 12201220111099. The next prime is 12201220111117. The reversal of 12201220111100 is 111102210221.

It is a super-2 number, since 2×12201220111100² (a number of 27 digits) contains 22 as substring.

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, 480350297 + ... + 480375696.

Almost surely, 2^{12201220111100} is an apocalyptic number.

12201220111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201220111100 is an abundant number, since it is smaller than the sum of its proper divisors (14483905098244).

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

12201220111100 is a wasteful number, since it uses less digits than its factorization.

12201220111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960726134 (or 960726127 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12201220111100 its reverse (111102210221), we get a palindrome (12312322321321).

The spelling of 12201220111100 in words is "twelve trillion, two hundred one billion, two hundred twenty million, one hundred eleven thousand, one hundred".