21013022233 has 8 divisors (see below), whose sum is σ = 24026912000. Its totient is φ = 18002139840.

The previous prime is 21013022183. The next prime is 21013022273. The reversal of 21013022233 is 33222031012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21013022233 - 2⁹ = 21013021721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21013022233.

It is not an unprimeable number, because it can be changed into a prime (21013022273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736848 + ... + 764833.

It is an arithmetic number, because the mean of its divisors is an integer number (3003364000).

Almost surely, 2^21013022233 is an apocalyptic number.

It is an amenable number.

21013022233 is a deficient number, since it is larger than the sum of its proper divisors (3013889767).

21013022233 is a wasteful number, since it uses less digits than its factorization.

21013022233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503687.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21013022233 its reverse (33222031012), we get a palindrome (54235053245).

The spelling of 21013022233 in words is "twenty-one billion, thirteen million, twenty-two thousand, two hundred thirty-three".