2211323212 has 24 divisors (see below), whose sum is σ = 4682803104. Its totient is φ = 891962112.

The previous prime is 2211323197. The next prime is 2211323239. The reversal of 2211323212 is 2123231122.

It is a self number, because there is not a number n which added to its sum of digits gives 2211323212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2322343 + ... + 2323294.

It is an arithmetic number, because the mean of its divisors is an integer number (195116796).

Almost surely, 2^2211323212 is an apocalyptic number.

It is an amenable number.

2211323212 is an abundant number, since it is smaller than the sum of its proper divisors (2471479892).

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

2211323212 is a wasteful number, since it uses less digits than its factorization.

2211323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645665 (or 4645663 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2211323212 is about 47024.7085264757. The cubic root of 2211323212 is about 1302.8189739259.

Adding to 2211323212 its reverse (2123231122), we get a palindrome (4334554334).

The spelling of 2211323212 in words is "two billion, two hundred eleven million, three hundred twenty-three thousand, two hundred twelve".