22040011 has 4 divisors (see below), whose sum is σ = 25188592. Its totient is φ = 18891432.

The previous prime is 22040009. The next prime is 22040023. The reversal of 22040011 is 11004022.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22040011 - 2¹ = 22040009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22040011.

It is not an unprimeable number, because it can be changed into a prime (22040071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574280 + ... + 1574293.

It is an arithmetic number, because the mean of its divisors is an integer number (6297148).

Almost surely, 2^22040011 is an apocalyptic number.

22040011 is a deficient number, since it is larger than the sum of its proper divisors (3148581).

22040011 is an equidigital number, since it uses as much as digits as its factorization.

22040011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148580.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 22040011 is about 4694.6790092614. The cubic root of 22040011 is about 280.3736974574.

Adding to 22040011 its reverse (11004022), we get a palindrome (33044033).

The spelling of 22040011 in words is "twenty-two million, forty thousand, eleven".