11220212 has 12 divisors (see below), whose sum is σ = 19884480. Its totient is φ = 5538936.

The previous prime is 11220211. The next prime is 11220227. The reversal of 11220212 is 21202211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11220193 and 11220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220211) by changing a digit.

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, 17438 + ... + 18069.

It is an arithmetic number, because the mean of its divisors is an integer number (1657040).

Almost surely, 2^11220212 is an apocalyptic number.

It is an amenable number.

11220212 is a deficient number, since it is larger than the sum of its proper divisors (8664268).

11220212 is a wasteful number, since it uses less digits than its factorization.

11220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35590 (or 35588 counting only the distinct ones).

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

The square root of 11220212 is about 3349.6584900554. The cubic root of 11220212 is about 223.8722964696.

Adding to 11220212 its reverse (21202211), we get a palindrome (32422423).

The spelling of 11220212 in words is "eleven million, two hundred twenty thousand, two hundred twelve".