12231022121100 has 180 divisors, whose sum is σ = 39933383813400. Its totient is φ = 3238140810240.

The previous prime is 12231022121099. The next prime is 12231022121107. The reversal of 12231022121100 is 112122013221.

12231022121100 is a `hidden beast` number, since 1 + 2 + 231 + 0 + 221 + 211 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12231022121107) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4305765 + ... + 6557564.

Almost surely, 2^{12231022121100} is an apocalyptic number.

12231022121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12231022121100 is an abundant number, since it is smaller than the sum of its proper divisors (27702361692300).

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

12231022121100 is a wasteful number, since it uses less digits than its factorization.

12231022121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10863494 (or 10863478 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12231022121100 its reverse (112122013221), we get a palindrome (12343144134321).

The spelling of 12231022121100 in words is "twelve trillion, two hundred thirty-one billion, twenty-two million, one hundred twenty-one thousand, one hundred".