10221321200 has 60 divisors (see below), whose sum is σ = 24799958088. Its totient is φ = 4048032000.

The previous prime is 10221321137. The next prime is 10221321239. The reversal of 10221321200 is 212312201.

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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86102 + ... + 166901.

Almost surely, 2^10221321200 is an apocalyptic number.

10221321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221321200 is an abundant number, since it is smaller than the sum of its proper divisors (14578636888).

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

10221321200 is a wasteful number, since it uses less digits than its factorization.

10221321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253122 (or 253111 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10221321200 its reverse (212312201), we get a palindrome (10433633401).

The spelling of 10221321200 in words is "ten billion, two hundred twenty-one million, three hundred twenty-one thousand, two hundred".