21002200330 has 8 divisors (see below), whose sum is σ = 37803960612. Its totient is φ = 8400880128.

The previous prime is 21002200327. The next prime is 21002200339. The reversal of 21002200330 is 3300220012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20223399681 + 778800649 = 142209^2 + 27907^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 21002200330.

It is not an unprimeable number, because it can be changed into a prime (21002200339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050110007 + ... + 1050110026.

Almost surely, 2^21002200330 is an apocalyptic number.

21002200330 is a deficient number, since it is larger than the sum of its proper divisors (16801760282).

21002200330 is a wasteful number, since it uses less digits than its factorization.

21002200330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100220040.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 21002200330 its reverse (3300220012), we get a palindrome (24302420342).

The spelling of 21002200330 in words is "twenty-one billion, two million, two hundred thousand, three hundred thirty".