12101333220 has 144 divisors (see below), whose sum is σ = 37809827328. Its totient is φ = 3130617600.

The previous prime is 12101333203. The next prime is 12101333267. The reversal of 12101333220 is 2233310121.

12101333220 is a `hidden beast` number, since 1 + 210 + 133 + 322 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12101333193 and 12101333202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2441745 + ... + 2446695.

Almost surely, 2^12101333220 is an apocalyptic number.

12101333220 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 12101333220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18904913664).

12101333220 is an abundant number, since it is smaller than the sum of its proper divisors (25708494108).

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

12101333220 is a wasteful number, since it uses less digits than its factorization.

12101333220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370 (or 5365 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12101333220 its reverse (2233310121), we get a palindrome (14334643341).

The spelling of 12101333220 in words is "twelve billion, one hundred one million, three hundred thirty-three thousand, two hundred twenty".