21213302200 has 48 divisors (see below), whose sum is σ = 49338951480. Its totient is φ = 8482220160.

The previous prime is 21213302197. The next prime is 21213302221. The reversal of 21213302200 is 220331212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574702 + ... + 610498.

Almost surely, 2^21213302200 is an apocalyptic number.

21213302200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21213302200 is an abundant number, since it is smaller than the sum of its proper divisors (28125649280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21213302200 is a wasteful number, since it uses less digits than its factorization.

21213302200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38776 (or 38767 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21213302200 its reverse (220331212), we get a palindrome (21433633412).

The spelling of 21213302200 in words is "twenty-one billion, two hundred thirteen million, three hundred two thousand, two hundred".