12011221100232 has 48 divisors (see below), whose sum is σ = 33081753042000. Its totient is φ = 3935880359136.

The previous prime is 12011221100227. The next prime is 12011221100233. The reversal of 12011221100232 is 23200112211021.

12011221100232 is a `hidden beast` number, since 1 + 201 + 1 + 221 + 10 + 0 + 232 = 666.

It is a super-3 number, since 3×12011221100232³ (a number of 40 digits) contains 333 as substring.

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 (12011221100233) by changing a digit.

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, 1413745882 + ... + 1413754377.

It is an arithmetic number, because the mean of its divisors is an integer number (689203188375).

Almost surely, 2^{12011221100232} is an apocalyptic number.

12011221100232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011221100232 is an abundant number, since it is smaller than the sum of its proper divisors (21070531941768).

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

12011221100232 is a wasteful number, since it uses less digits than its factorization.

12011221100232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827500330 (or 2827500323 counting only the distinct ones).

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

Adding to 12011221100232 its reverse (23200112211021), we get a palindrome (35211333311253).

The spelling of 12011221100232 in words is "twelve trillion, eleven billion, two hundred twenty-one million, one hundred thousand, two hundred thirty-two".