11021222 has 4 divisors (see below), whose sum is σ = 16531836. Its totient is φ = 5510610.

The previous prime is 11021183. The next prime is 11021249. The reversal of 11021222 is 22212011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22212011 = 1453 ⋅15287.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2755304 + ... + 2755307.

It is an arithmetic number, because the mean of its divisors is an integer number (4132959).

Almost surely, 2^11021222 is an apocalyptic number.

11021222 is a deficient number, since it is larger than the sum of its proper divisors (5510614).

11021222 is an equidigital number, since it uses as much as digits as its factorization.

11021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510613.

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

The square root of 11021222 is about 3319.8225856211. The cubic root of 11021222 is about 222.5409393170.

Adding to 11021222 its reverse (22212011), we get a palindrome (33233233).

The spelling of 11021222 in words is "eleven million, twenty-one thousand, two hundred twenty-two".