22005011 has 8 divisors (see below), whose sum is σ = 25524480. Its totient is φ = 18579528.

The previous prime is 22004989. The next prime is 22005013. The reversal of 22005011 is 11050022.

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 22005011 - 2¹⁴ = 21988627 is a prime.

It is a super-2 number, since 2×22005011² = 968441018220242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22004983 and 22005001.

It is not an unprimeable number, because it can be changed into a prime (22005013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22991 + ... + 23928.

It is an arithmetic number, because the mean of its divisors is an integer number (3190560).

Almost surely, 2^22005011 is an apocalyptic number.

22005011 is a deficient number, since it is larger than the sum of its proper divisors (3519469).

22005011 is an equidigital number, since it uses as much as digits as its factorization.

22005011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46993.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 22005011 is about 4690.9499038041. The cubic root of 22005011 is about 280.2252057219.

Adding to 22005011 its reverse (11050022), we get a palindrome (33055033).

The spelling of 22005011 in words is "twenty-two million, five thousand, eleven".