2211212 has 24 divisors (see below), whose sum is σ = 4033680. Its totient is φ = 1059840.

The previous prime is 2211211. The next prime is 2211217. The reversal of 2211212 is 2121122.

It is a happy number.

2211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2211193 and 2211202.

It is not an unprimeable number, because it can be changed into a prime (2211211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15839 + ... + 15977.

It is an arithmetic number, because the mean of its divisors is an integer number (168070).

2^2211212 is an apocalyptic number.

It is an amenable number.

2211212 is a deficient number, since it is larger than the sum of its proper divisors (1822468).

2211212 is a wasteful number, since it uses less digits than its factorization.

2211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 279 counting only the distinct ones).

The product of its digits is 16, while the sum is 11.

The square root of 2211212 is about 1487.0144585713. The cubic root of 2211212 is about 130.2797133076.

Adding to 2211212 its reverse (2121122), we get a palindrome (4332334).

The spelling of 2211212 in words is "two million, two hundred eleven thousand, two hundred twelve".