22033001 has 4 divisors (see below), whose sum is σ = 22448772. Its totient is φ = 21617232.

The previous prime is 22032977. The next prime is 22033007. The reversal of 22033001 is 10033022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18498601 + 3534400 = 4301^2 + 1880^2 .

It is a cyclic number.

It is not a de Polignac number, because 22033001 - 2⁶ = 22032937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22033007) 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, 207806 + ... + 207911.

It is an arithmetic number, because the mean of its divisors is an integer number (5612193).

Almost surely, 2^22033001 is an apocalyptic number.

It is an amenable number.

22033001 is a deficient number, since it is larger than the sum of its proper divisors (415771).

22033001 is an equidigital number, since it uses as much as digits as its factorization.

22033001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415770.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 22033001 is about 4693.9323599728. The cubic root of 22033001 is about 280.3439692807.

Adding to 22033001 its reverse (10033022), we get a palindrome (32066023).

The spelling of 22033001 in words is "twenty-two million, thirty-three thousand, one".