21341204200 has 24 divisors (see below), whose sum is σ = 49618300230. Its totient is φ = 8536481600.

The previous prime is 21341204173. The next prime is 21341204221. The reversal of 21341204200 is 240214312.

It can be written as a sum of positive squares in 3 ways, for example, as 16023002724 + 5318201476 = 126582^2 + 72926^2 .

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 5 ways as a sum of consecutive naturals, for example, 53352811 + ... + 53353210.

Almost surely, 2^21341204200 is an apocalyptic number.

21341204200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21341204200 is an abundant number, since it is smaller than the sum of its proper divisors (28277096030).

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

21341204200 is a wasteful number, since it uses less digits than its factorization.

21341204200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106706037 (or 106706028 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 21341204200 its reverse (240214312), we get a palindrome (21581418512).

The spelling of 21341204200 in words is "twenty-one billion, three hundred forty-one million, two hundred four thousand, two hundred".