12003221120 has 192 divisors, whose sum is σ = 33045135840. Its totient is φ = 4134205440.

The previous prime is 12003221107. The next prime is 12003221141. The reversal of 12003221120 is 2112230021.

It is a happy number.

It is a super-2 number, since 2×12003221120² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12003221095 and 12003221104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2539079 + ... + 2543801.

Almost surely, 2^12003221120 is an apocalyptic number.

12003221120 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 12003221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16522567920).

12003221120 is an abundant number, since it is smaller than the sum of its proper divisors (21041914720).

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

12003221120 is a wasteful number, since it uses less digits than its factorization.

12003221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791 (or 4760 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12003221120 its reverse (2112230021), we get a palindrome (14115451141).

The spelling of 12003221120 in words is "twelve billion, three million, two hundred twenty-one thousand, one hundred twenty".