11222011 has 8 divisors (see below), whose sum is σ = 11528000. Its totient is φ = 10918152.

The previous prime is 11221993. The next prime is 11222021. The reversal of 11222011 is 11022211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11222011 - 2⁷ = 11221883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21196 + ... + 21718.

It is an arithmetic number, because the mean of its divisors is an integer number (1441000).

Almost surely, 2^11222011 is an apocalyptic number.

11222011 is a deficient number, since it is larger than the sum of its proper divisors (305989).

11222011 is an equidigital number, since it uses as much as digits as its factorization.

11222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 11222011 is about 3349.9270141303. The cubic root of 11222011 is about 223.8842607337.

Adding to 11222011 its reverse (11022211), we get a palindrome (22244222).

The spelling of 11222011 in words is "eleven million, two hundred twenty-two thousand, eleven".