33000021223 has 16 divisors (see below), whose sum is σ = 37750055616. Its totient is φ = 28577456640.

The previous prime is 33000021181. The next prime is 33000021227. The reversal of 33000021223 is 32212000033.

It is a cyclic number.

It is not a de Polignac number, because 33000021223 - 2²⁹ = 32463150311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33000021197 and 33000021206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33000021227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171336 + ... + 308797.

It is an arithmetic number, because the mean of its divisors is an integer number (2359378476).

Almost surely, 2^33000021223 is an apocalyptic number.

33000021223 is a deficient number, since it is larger than the sum of its proper divisors (4750034393).

33000021223 is a wasteful number, since it uses less digits than its factorization.

33000021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480474.

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

Adding to 33000021223 its reverse (32212000033), we get a palindrome (65212021256).

The spelling of 33000021223 in words is "thirty-three billion, twenty-one thousand, two hundred twenty-three".