12210233544 has 320 divisors, whose sum is σ = 38510089200. Its totient is φ = 3595124736.

The previous prime is 12210233521. The next prime is 12210233551. The reversal of 12210233544 is 44533201221.

12210233544 is a `hidden beast` number, since 12 + 2 + 102 + 3 + 3 + 544 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 12091641444 + 118592100 = 109962^2 + 10890^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11819652 + ... + 11820684.

Almost surely, 2^12210233544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210233544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19255044600).

12210233544 is an abundant number, since it is smaller than the sum of its proper divisors (26299855656).

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

12210233544 is a wasteful number, since it uses less digits than its factorization.

12210233544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12210233544 its reverse (44533201221), we get a palindrome (56743434765).

The spelling of 12210233544 in words is "twelve billion, two hundred ten million, two hundred thirty-three thousand, five hundred forty-four".