100221020000 has 60 divisors (see below), whose sum is σ = 246558791556. Its totient is φ = 40088400000.

The previous prime is 100221019981. The next prime is 100221020021. The reversal of 100221020000 is 20122001.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 100221020000.

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 9 ways as a sum of consecutive naturals, for example, 2485526 + ... + 2525525.

Almost surely, 2^100221020000 is an apocalyptic number.

100221020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221020000 is an abundant number, since it is smaller than the sum of its proper divisors (146337771556).

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

100221020000 is an frugal number, since it uses more digits than its factorization.

100221020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011081 (or 5011058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 100221020000 its reverse (20122001), we get a palindrome (100241142001).

The spelling of 100221020000 in words is "one hundred billion, two hundred twenty-one million, twenty thousand".