33221000023 has 4 divisors (see below), whose sum is σ = 33784067880. Its totient is φ = 32657932168.

The previous prime is 33221000009. The next prime is 33221000027. The reversal of 33221000023 is 32000012233.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33221000023 is a prime.

It is a super-2 number, since 2×33221000023² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33220999970 and 33221000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33221000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281533840 + ... + 281533957.

It is an arithmetic number, because the mean of its divisors is an integer number (8446016970).

Almost surely, 2^33221000023 is an apocalyptic number.

33221000023 is a deficient number, since it is larger than the sum of its proper divisors (563067857).

33221000023 is an equidigital number, since it uses as much as digits as its factorization.

33221000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563067856.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 33221000023 its reverse (32000012233), we get a palindrome (65221012256).

The spelling of 33221000023 in words is "thirty-three billion, two hundred twenty-one million, twenty-three", and thus it is an aban number.