12043222100 has 72 divisors (see below), whose sum is σ = 32164691328. Its totient is φ = 3811478400.

The previous prime is 12043222069. The next prime is 12043222111. The reversal of 12043222100 is 122234021.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 652616 + ... + 670815.

It is an arithmetic number, because the mean of its divisors is an integer number (446731824).

Almost surely, 2^12043222100 is an apocalyptic number.

12043222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12043222100 is an abundant number, since it is smaller than the sum of its proper divisors (20121469228).

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

12043222100 is a wasteful number, since it uses less digits than its factorization.

12043222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323465 (or 1323458 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12043222100 its reverse (122234021), we get a palindrome (12165456121).

The spelling of 12043222100 in words is "twelve billion, forty-three million, two hundred twenty-two thousand, one hundred".