11222012 has 12 divisors (see below), whose sum is σ = 19682880. Its totient is φ = 5598336.

The previous prime is 11221993. The next prime is 11222021. The reversal of 11222012 is 21022211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11221984 and 11222002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013 + ... + 4844.

It is an arithmetic number, because the mean of its divisors is an integer number (1640240).

Almost surely, 2^11222012 is an apocalyptic number.

It is an amenable number.

11222012 is a deficient number, since it is larger than the sum of its proper divisors (8460868).

11222012 is a wasteful number, since it uses less digits than its factorization.

11222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340 (or 6338 counting only the distinct ones).

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

The square root of 11222012 is about 3349.9271633873. The cubic root of 11222012 is about 223.8842673839.

Adding to 11222012 its reverse (21022211), we get a palindrome (32244223).

The spelling of 11222012 in words is "eleven million, two hundred twenty-two thousand, twelve".