2222120312 has 8 divisors (see below), whose sum is σ = 4166475600. Its totient is φ = 1111060152.

The previous prime is 2222120311. The next prime is 2222120323. The reversal of 2222120312 is 2130212222.

2222120312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222120311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138882512 + ... + 138882527.

It is an arithmetic number, because the mean of its divisors is an integer number (520809450).

Almost surely, 2^2222120312 is an apocalyptic number.

It is an amenable number.

2222120312 is a deficient number, since it is larger than the sum of its proper divisors (1944355288).

2222120312 is a wasteful number, since it uses less digits than its factorization.

2222120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277765045 (or 277765041 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2222120312 is about 47139.3711455721. The cubic root of 2222120312 is about 1304.9359318331.

Adding to 2222120312 its reverse (2130212222), we get a palindrome (4352332534).

The spelling of 2222120312 in words is "two billion, two hundred twenty-two million, one hundred twenty thousand, three hundred twelve".