21032210333 has 8 divisors (see below), whose sum is σ = 21163808952. Its totient is φ = 20900862976.

The previous prime is 21032210257. The next prime is 21032210359. The reversal of 21032210333 is 33301223012.

It can be written as a sum of positive squares in 4 ways, for example, as 17311454329 + 3720756004 = 131573^2 + 60998^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21032210333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032210393) 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, 106541 + ... + 231117.

It is an arithmetic number, because the mean of its divisors is an integer number (2645476119).

Almost surely, 2^21032210333 is an apocalyptic number.

It is an amenable number.

21032210333 is a deficient number, since it is larger than the sum of its proper divisors (131598619).

21032210333 is a wasteful number, since it uses less digits than its factorization.

21032210333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125631.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21032210333 its reverse (33301223012), we get a palindrome (54333433345).

The spelling of 21032210333 in words is "twenty-one billion, thirty-two million, two hundred ten thousand, three hundred thirty-three".