22006013 has 4 divisors (see below), whose sum is σ = 22087488. Its totient is φ = 21924540.

The previous prime is 22005989. The next prime is 22006037. The reversal of 22006013 is 31060022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22005989) and next prime (22006037).

It is a cyclic number.

It is not a de Polignac number, because 22006013 - 2¹⁰ = 22004989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22006093) 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, 40331 + ... + 40872.

It is an arithmetic number, because the mean of its divisors is an integer number (5521872).

Almost surely, 2^22006013 is an apocalyptic number.

It is an amenable number.

22006013 is a deficient number, since it is larger than the sum of its proper divisors (81475).

22006013 is an equidigital number, since it uses as much as digits as its factorization.

22006013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81474.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22006013 is about 4691.0567039847. The cubic root of 22006013 is about 280.2294590166.

Adding to 22006013 its reverse (31060022), we get a palindrome (53066035).

The spelling of 22006013 in words is "twenty-two million, six thousand, thirteen".