12021120222 has 48 divisors (see below), whose sum is σ = 25402470912. Its totient is φ = 3791918160.

The previous prime is 12021120187. The next prime is 12021120227. The reversal of 12021120222 is 22202112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021120227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2360563 + ... + 2365649.

It is an arithmetic number, because the mean of its divisors is an integer number (529218144).

Almost surely, 2^12021120222 is an apocalyptic number.

12021120222 is an abundant number, since it is smaller than the sum of its proper divisors (13381350690).

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

12021120222 is a wasteful number, since it uses less digits than its factorization.

12021120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221 (or 6202 counting only the distinct ones).

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

Adding to 12021120222 its reverse (22202112021), we get a palindrome (34223232243).

The spelling of 12021120222 in words is "twelve billion, twenty-one million, one hundred twenty thousand, two hundred twenty-two".