2311223112212 has 12 divisors (see below), whose sum is σ = 4622446224480. Its totient is φ = 990524190936.

The previous prime is 2311223112173. The next prime is 2311223112221. The reversal of 2311223112212 is 2122113221132.

2311223112212 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 41271841262 + ... + 41271841317.

It is an arithmetic number, because the mean of its divisors is an integer number (385203852040).

Almost surely, 2^{2311223112212} is an apocalyptic number.

It is an amenable number.

2311223112212 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.

2311223112212 is a wasteful number, since it uses less digits than its factorization.

2311223112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82543682590 (or 82543682588 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 2311223112212 its reverse (2122113221132), we get a palindrome (4433336333344).

The spelling of 2311223112212 in words is "two trillion, three hundred eleven billion, two hundred twenty-three million, one hundred twelve thousand, two hundred twelve".