12222120300 has 144 divisors (see below), whose sum is σ = 38327359392. Its totient is φ = 2989209600.

The previous prime is 12222120293. The next prime is 12222120307. The reversal of 12222120300 is 302122221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12222120293) and next prime (12222120307).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12222120300.

It is not an unprimeable number, because it can be changed into a prime (12222120307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 602320 + ... + 622280.

It is an arithmetic number, because the mean of its divisors is an integer number (266162218).

Almost surely, 2^12222120300 is an apocalyptic number.

12222120300 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 12222120300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19163679696).

12222120300 is an abundant number, since it is smaller than the sum of its proper divisors (26105239092).

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

12222120300 is a wasteful number, since it uses less digits than its factorization.

12222120300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20148 (or 20141 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12222120300 its reverse (302122221), we get a palindrome (12524242521).

The spelling of 12222120300 in words is "twelve billion, two hundred twenty-two million, one hundred twenty thousand, three hundred".