12213002120 has 64 divisors (see below), whose sum is σ = 30056875200. Its totient is φ = 4429313280.

The previous prime is 12213002099. The next prime is 12213002173. The reversal of 12213002120 is 2120031221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12213002095 and 12213002104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130142 + ... + 203378.

It is an arithmetic number, because the mean of its divisors is an integer number (469638675).

Almost surely, 2^12213002120 is an apocalyptic number.

12213002120 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 12213002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15028437600).

12213002120 is an abundant number, since it is smaller than the sum of its proper divisors (17843873080).

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

12213002120 is a wasteful number, since it uses less digits than its factorization.

12213002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73638 (or 73634 counting only the distinct ones).

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

Adding to 12213002120 its reverse (2120031221), we get a palindrome (14333033341).

The spelling of 12213002120 in words is "twelve billion, two hundred thirteen million, two thousand, one hundred twenty".