10321021200 has 120 divisors (see below), whose sum is σ = 37784797888. Its totient is φ = 2359088640.

The previous prime is 10321021187. The next prime is 10321021201. The reversal of 10321021200 is 212012301.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×10321021200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (10321021201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 605947 + ... + 622746.

Almost surely, 2^10321021200 is an apocalyptic number.

10321021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10321021200 is an abundant number, since it is smaller than the sum of its proper divisors (27463776688).

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

10321021200 is a wasteful number, since it uses less digits than its factorization.

10321021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228721 (or 1228710 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10321021200 its reverse (212012301), we get a palindrome (10533033501).

The spelling of 10321021200 in words is "ten billion, three hundred twenty-one million, twenty-one thousand, two hundred".