22011066 has 48 divisors (see below), whose sum is σ = 59462208. Its totient is φ = 5716800.

The previous prime is 22011053. The next prime is 22011083. The reversal of 22011066 is 66011022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6555 + ... + 9326.

It is an arithmetic number, because the mean of its divisors is an integer number (1238796).

Almost surely, 2^22011066 is an apocalyptic number.

22011066 is an abundant number, since it is smaller than the sum of its proper divisors (37451142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22011066 is a wasteful number, since it uses less digits than its factorization.

22011066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15907 (or 15904 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 22011066 is about 4691.5952510846. The cubic root of 22011066 is about 280.2509060501.

Adding to 22011066 its reverse (66011022), we get a palindrome (88022088).

The spelling of 22011066 in words is "twenty-two million, eleven thousand, sixty-six".