33221331001 has 4 divisors (see below), whose sum is σ = 33224449104. Its totient is φ = 33218212900.

The previous prime is 33221330981. The next prime is 33221331019. The reversal of 33221331001 is 10013312233.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10013312233 = 431 ⋅23232743.

It is a cyclic number.

It is not a de Polignac number, because 33221331001 - 2³¹ = 31073847353 is a prime.

It is a super-2 number, since 2×33221331001² (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 33221331001.

It is not an unprimeable number, because it can be changed into a prime (33221331301) 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, 1543015 + ... + 1564396.

It is an arithmetic number, because the mean of its divisors is an integer number (8306112276).

Almost surely, 2^33221331001 is an apocalyptic number.

It is an amenable number.

33221331001 is a deficient number, since it is larger than the sum of its proper divisors (3118103).

33221331001 is a wasteful number, since it uses less digits than its factorization.

33221331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118102.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 33221331001 its reverse (10013312233), we get a palindrome (43234643234).

The spelling of 33221331001 in words is "thirty-three billion, two hundred twenty-one million, three hundred thirty-one thousand, one".