33221232001 has 4 divisors (see below), whose sum is σ = 33225023232. Its totient is φ = 33217440772.

The previous prime is 33221231983. The next prime is 33221232017. The reversal of 33221232001 is 10023212233.

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 33221232001 - 2⁵ = 33221231969 is a prime.

It is a super-2 number, since 2×33221232001² (a number of 22 digits) contains 22 as substring.

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 33221232001.

It is not an unprimeable number, because it can be changed into a prime (33221232041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1882441 + ... + 1900006.

It is an arithmetic number, because the mean of its divisors is an integer number (8306255808).

Almost surely, 2^33221232001 is an apocalyptic number.

It is an amenable number.

33221232001 is a deficient number, since it is larger than the sum of its proper divisors (3791231).

33221232001 is an equidigital number, since it uses as much as digits as its factorization.

33221232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791230.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33221232001 its reverse (10023212233), we get a palindrome (43244444234).

The spelling of 33221232001 in words is "thirty-three billion, two hundred twenty-one million, two hundred thirty-two thousand, one".