21203010200 has 48 divisors (see below), whose sum is σ = 49530732360. Its totient is φ = 8440992000.

The previous prime is 21203010197. The next prime is 21203010221. The reversal of 21203010200 is 201030212.

It is a happy number.

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, 209021 + ... + 293420.

Almost surely, 2^21203010200 is an apocalyptic number.

21203010200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21203010200 is an abundant number, since it is smaller than the sum of its proper divisors (28327722160).

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

21203010200 is a wasteful number, since it uses less digits than its factorization.

21203010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502668 (or 502659 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21203010200 its reverse (201030212), we get a palindrome (21404040412).

The spelling of 21203010200 in words is "twenty-one billion, two hundred three million, ten thousand, two hundred".