12012222222220 has 72 divisors (see below), whose sum is σ = 27730084791024. Its totient is φ = 4367655600000.

The previous prime is 12012222222197. The next prime is 12012222222233. The reversal of 12012222222220 is 2222222221021.

12012222222220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12012222222191 and 12012222222200.

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, 25176075 + ... + 25648765.

It is an arithmetic number, because the mean of its divisors is an integer number (385140066542).

Almost surely, 2^{12012222222220} is an apocalyptic number.

12012222222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012222222220 is an abundant number, since it is smaller than the sum of its proper divisors (15717862568804).

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

12012222222220 is a wasteful number, since it uses less digits than its factorization.

12012222222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483223 (or 483210 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 12012222222220 its reverse (2222222221021), we get a palindrome (14234444443241).

The spelling of 12012222222220 in words is "twelve trillion, twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty".