22006001 has 4 divisors (see below), whose sum is σ = 22715904. Its totient is φ = 21296100.

The previous prime is 22005989. The next prime is 22006037. The reversal of 22006001 is 10060022.

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 a cyclic number.

It is not a de Polignac number, because 22006001 - 2⁶ = 22005937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22006301) 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, 354905 + ... + 354966.

It is an arithmetic number, because the mean of its divisors is an integer number (5678976).

Almost surely, 2^22006001 is an apocalyptic number.

It is an amenable number.

22006001 is a deficient number, since it is larger than the sum of its proper divisors (709903).

22006001 is an equidigital number, since it uses as much as digits as its factorization.

22006001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709902.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 22006001 is about 4691.0554249550. The cubic root of 22006001 is about 280.2294080797.

Adding to 22006001 its reverse (10060022), we get a palindrome (32066023).

The spelling of 22006001 in words is "twenty-two million, six thousand, one".