12212031100 has 18 divisors (see below), whose sum is σ = 26500107704. Its totient is φ = 4884812400.

The previous prime is 12212031077. The next prime is 12212031113. The reversal of 12212031100 is 113021221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61060056 + ... + 61060255.

Almost surely, 2^12212031100 is an apocalyptic number.

12212031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212031100 is an abundant number, since it is smaller than the sum of its proper divisors (14288076604).

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

12212031100 is a wasteful number, since it uses less digits than its factorization.

12212031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122120325 (or 122120318 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12212031100 its reverse (113021221), we get a palindrome (12325052321).

The spelling of 12212031100 in words is "twelve billion, two hundred twelve million, thirty-one thousand, one hundred".