21033013202 has 8 divisors (see below), whose sum is σ = 32319020412. Its totient is φ = 10260006400.

The previous prime is 21033013189. The next prime is 21033013213. The reversal of 21033013202 is 20231033012.

It can be written as a sum of positive squares in 2 ways, for example, as 15880788361 + 5152224841 = 126019^2 + 71779^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128249999 + ... + 128250162.

Almost surely, 2^21033013202 is an apocalyptic number.

21033013202 is a deficient number, since it is larger than the sum of its proper divisors (11286007210).

21033013202 is a wasteful number, since it uses less digits than its factorization.

21033013202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256500204.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21033013202 its reverse (20231033012), we get a palindrome (41264046214).

The spelling of 21033013202 in words is "twenty-one billion, thirty-three million, thirteen thousand, two hundred two".