12211100203230 has 128 divisors (see below), whose sum is σ = 32974150809600. Its totient is φ = 3215272465152.

The previous prime is 12211100203219. The next prime is 12211100203249. The reversal of 12211100203230 is 3230200111221.

12211100203230 is a `hidden beast` number, since 1 + 221 + 1 + 10 + 0 + 203 + 230 = 666.

It is a super-2 number, since 2×12211100203230² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17120319 + ... + 17819301.

It is an arithmetic number, because the mean of its divisors is an integer number (257610553200).

Almost surely, 2^{12211100203230} is an apocalyptic number.

12211100203230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211100203230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16487075404800).

12211100203230 is an abundant number, since it is smaller than the sum of its proper divisors (20763050606370).

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

12211100203230 is a wasteful number, since it uses less digits than its factorization.

12211100203230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699815 (or 699809 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12211100203230 its reverse (3230200111221), we get a palindrome (15441300314451).

The spelling of 12211100203230 in words is "twelve trillion, two hundred eleven billion, one hundred million, two hundred three thousand, two hundred thirty".