12201101100 has 54 divisors (see below), whose sum is σ = 38243676380. Its totient is φ = 3253626720.

The previous prime is 12201101027. The next prime is 12201101113. The reversal of 12201101100 is 110110221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6777490 + ... + 6779289.

Almost surely, 2^12201101100 is an apocalyptic number.

12201101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201101100 is an abundant number, since it is smaller than the sum of its proper divisors (26042575280).

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

12201101100 is a wasteful number, since it uses less digits than its factorization.

12201101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13556799 (or 13556789 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12201101100 its reverse (110110221), we get a palindrome (12311211321).

The spelling of 12201101100 in words is "twelve billion, two hundred one million, one hundred one thousand, one hundred".