12205401100 has 36 divisors (see below), whose sum is σ = 27399027600. Its totient is φ = 4713808960.

The previous prime is 12205401097. The next prime is 12205401119. The reversal of 12205401100 is 110450221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2101480 + ... + 2107279.

It is an arithmetic number, because the mean of its divisors is an integer number (761084100).

Almost surely, 2^12205401100 is an apocalyptic number.

12205401100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12205401100 is an abundant number, since it is smaller than the sum of its proper divisors (15193626500).

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

12205401100 is a wasteful number, since it uses less digits than its factorization.

12205401100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208802 (or 4208795 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 12205401100 its reverse (110450221), we get a palindrome (12315851321).

The spelling of 12205401100 in words is "twelve billion, two hundred five million, four hundred one thousand, one hundred".