20001202201100 has 72 divisors (see below), whose sum is σ = 43803130066080. Its totient is φ = 7926659896320.

The previous prime is 20001202201087. The next prime is 20001202201139. The reversal of 20001202201100 is 110220210002.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 276464132 + ... + 276536468.

Almost surely, 2^{20001202201100} is an apocalyptic number.

20001202201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001202201100 is an abundant number, since it is smaller than the sum of its proper divisors (23801927864980).

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

20001202201100 is a wasteful number, since it uses less digits than its factorization.

20001202201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97827 (or 97820 counting only the distinct ones).

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

Adding to 20001202201100 its reverse (110220210002), we get a palindrome (20111422411102).

The spelling of 20001202201100 in words is "twenty trillion, one billion, two hundred two million, two hundred one thousand, one hundred".