2311122212 has 12 divisors (see below), whose sum is σ = 4622244480. Its totient is φ = 990480936.

The previous prime is 2311122193. The next prime is 2311122227. The reversal of 2311122212 is 2122211132.

2311122212 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41270012 + ... + 41270067.

It is an arithmetic number, because the mean of its divisors is an integer number (385187040).

Almost surely, 2^2311122212 is an apocalyptic number.

It is an amenable number.

2311122212 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.

2311122212 is a wasteful number, since it uses less digits than its factorization.

2311122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82540090 (or 82540088 counting only the distinct ones).

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

The square root of 2311122212 is about 48074.1324622712. The cubic root of 2311122212 is about 1322.1304386299.

Adding to 2311122212 its reverse (2122211132), we get a palindrome (4433333344).

The spelling of 2311122212 in words is "two billion, three hundred eleven million, one hundred twenty-two thousand, two hundred twelve".