2111222312 has 16 divisors (see below), whose sum is σ = 3996975840. Its totient is φ = 1045362096.

The previous prime is 2111222303. The next prime is 2111222317. The reversal of 2111222312 is 2132221112.

It is not an unprimeable number, because it can be changed into a prime (2111222317) 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, 1280258 + ... + 1281905.

It is an arithmetic number, because the mean of its divisors is an integer number (249810990).

Almost surely, 2^2111222312 is an apocalyptic number.

It is an amenable number.

2111222312 is a deficient number, since it is larger than the sum of its proper divisors (1885753528).

2111222312 is a wasteful number, since it uses less digits than its factorization.

2111222312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562272 (or 2562268 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 2111222312 is about 45948.0392617574. The cubic root of 2111222312 is about 1282.8562340694.

Adding to 2111222312 its reverse (2132221112), we get a palindrome (4243443424).

The spelling of 2111222312 in words is "two billion, one hundred eleven million, two hundred twenty-two thousand, three hundred twelve".