12120021222 has 8 divisors (see below), whose sum is σ = 24240042456. Its totient is φ = 4040007072.

The previous prime is 12120021209. The next prime is 12120021223. The reversal of 12120021222 is 22212002121.

12120021222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12120021222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120021223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010001763 + ... + 1010001774.

It is an arithmetic number, because the mean of its divisors is an integer number (3030005307).

Almost surely, 2^12120021222 is an apocalyptic number.

12120021222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12120021222 is a wasteful number, since it uses less digits than its factorization.

12120021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020003542.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12120021222 its reverse (22212002121), we get a palindrome (34332023343).

The spelling of 12120021222 in words is "twelve billion, one hundred twenty million, twenty-one thousand, two hundred twenty-two".