12201001100 has 36 divisors (see below), whose sum is σ = 26773677000. Its totient is φ = 4825560960.

The previous prime is 12201001097. The next prime is 12201001123. The reversal of 12201001100 is 110010221.

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, 676550 + ... + 694349.

It is an arithmetic number, because the mean of its divisors is an integer number (743713250).

Almost surely, 2^12201001100 is an apocalyptic number.

12201001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201001100 is an abundant number, since it is smaller than the sum of its proper divisors (14572675900).

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

12201001100 is a wasteful number, since it uses less digits than its factorization.

12201001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371002 (or 1370995 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12201001100 its reverse (110010221), we get a palindrome (12311011321).

The spelling of 12201001100 in words is "twelve billion, two hundred one million, one thousand, one hundred".