21233200233 has 24 divisors (see below), whose sum is σ = 33995493120. Its totient is φ = 11741859360.

The previous prime is 21233200217. The next prime is 21233200259. The reversal of 21233200233 is 33200233212.

It is not a de Polignac number, because 21233200233 - 2⁴ = 21233200217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (21233200213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2325178 + ... + 2334291.

It is an arithmetic number, because the mean of its divisors is an integer number (1416478880).

Almost surely, 2^21233200233 is an apocalyptic number.

It is an amenable number.

21233200233 is a deficient number, since it is larger than the sum of its proper divisors (12762292887).

21233200233 is a wasteful number, since it uses less digits than its factorization.

21233200233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4659517 (or 4659510 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21233200233 its reverse (33200233212), we get a palindrome (54433433445).

The spelling of 21233200233 in words is "twenty-one billion, two hundred thirty-three million, two hundred thousand, two hundred thirty-three".