12222232001100 has 720 divisors, whose sum is σ = 45130716449280. Its totient is φ = 2833993612800.

The previous prime is 12222232001093. The next prime is 12222232001173. The reversal of 12222232001100 is 110023222221.

12222232001100 is a `hidden beast` number, since 1 + 22 + 222 + 320 + 0 + 1 + 100 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 276455197 + ... + 276499403.

It is an arithmetic number, because the mean of its divisors is an integer number (62681550624).

Almost surely, 2^{12222232001100} is an apocalyptic number.

12222232001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222232001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22565358224640).

12222232001100 is an abundant number, since it is smaller than the sum of its proper divisors (32908484448180).

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

12222232001100 is a wasteful number, since it uses less digits than its factorization.

12222232001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44380 (or 44364 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12222232001100 its reverse (110023222221), we get a palindrome (12332255223321).

It can be divided in two parts, 1222 and 2232001100, that added together give a palindrome (2232002322).

The spelling of 12222232001100 in words is "twelve trillion, two hundred twenty-two billion, two hundred thirty-two million, one thousand, one hundred".