10321220100 has 72 divisors (see below), whose sum is σ = 31161130560. Its totient is φ = 2632657280.

The previous prime is 10321220059. The next prime is 10321220131. The reversal of 10321220100 is 102212301.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741015 + ... + 754814.

It is an arithmetic number, because the mean of its divisors is an integer number (432793480).

Almost surely, 2^10321220100 is an apocalyptic number.

10321220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10321220100 is an abundant number, since it is smaller than the sum of its proper divisors (20839910460).

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

10321220100 is a wasteful number, since it uses less digits than its factorization.

10321220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495869 (or 1495862 counting only the distinct ones).

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

Adding to 10321220100 its reverse (102212301), we get a palindrome (10423432401).

The spelling of 10321220100 in words is "ten billion, three hundred twenty-one million, two hundred twenty thousand, one hundred".