100201221200 has 60 divisors (see below), whose sum is σ = 240919440288. Its totient is φ = 40049520000.

The previous prime is 100201221179. The next prime is 100201221217. The reversal of 100201221200 is 2122102001.

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, 425075 + ... + 617325.

Almost surely, 2^100201221200 is an apocalyptic number.

100201221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100201221200 is an abundant number, since it is smaller than the sum of its proper divisors (140718219088).

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

100201221200 is a wasteful number, since it uses less digits than its factorization.

100201221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193572 (or 193561 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100201221200 its reverse (2122102001), we get a palindrome (102323323201).

The spelling of 100201221200 in words is "one hundred billion, two hundred one million, two hundred twenty-one thousand, two hundred".