21233302233 has 16 divisors (see below), whose sum is σ = 33260558016. Its totient is φ = 11878770240.

The previous prime is 21233302217. The next prime is 21233302247. The reversal of 21233302233 is 33220333212.

It is not a de Polignac number, because 21233302233 - 2⁴ = 21233302217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21233302333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24747010 + ... + 24747867.

It is an arithmetic number, because the mean of its divisors is an integer number (2078784876).

Almost surely, 2^21233302233 is an apocalyptic number.

It is an amenable number.

21233302233 is a deficient number, since it is larger than the sum of its proper divisors (12027255783).

21233302233 is a wasteful number, since it uses less digits than its factorization.

21233302233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49494904.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 21233302233 its reverse (33220333212), we get a palindrome (54453635445).

The spelling of 21233302233 in words is "twenty-one billion, two hundred thirty-three million, three hundred two thousand, two hundred thirty-three".