21033213302 has 4 divisors (see below), whose sum is σ = 31549819956. Its totient is φ = 10516606650.

The previous prime is 21033213301. The next prime is 21033213359. The reversal of 21033213302 is 20331233012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033213301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5258303324 + ... + 5258303327.

It is an arithmetic number, because the mean of its divisors is an integer number (7887454989).

Almost surely, 2^21033213302 is an apocalyptic number.

21033213302 is a deficient number, since it is larger than the sum of its proper divisors (10516606654).

21033213302 is a wasteful number, since it uses less digits than its factorization.

21033213302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516606653.

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

Adding to 21033213302 its reverse (20331233012), we get a palindrome (41364446314).

The spelling of 21033213302 in words is "twenty-one billion, thirty-three million, two hundred thirteen thousand, three hundred two".