100000201220 has 24 divisors (see below), whose sum is σ = 212039265984. Its totient is φ = 39611729376.

The previous prime is 100000201181. The next prime is 100000201237. The reversal of 100000201220 is 22102000001.

It is a junction number, because it is equal to n+sod(n) for n = 100000201198 and 100000201207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24269834 + ... + 24273953.

It is an arithmetic number, because the mean of its divisors is an integer number (8834969416).

Almost surely, 2^100000201220 is an apocalyptic number.

100000201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000201220 is an abundant number, since it is smaller than the sum of its proper divisors (112039064764).

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

100000201220 is a wasteful number, since it uses less digits than its factorization.

100000201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48543899 (or 48543897 counting only the distinct ones).

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

Adding to 100000201220 its reverse (22102000001), we get a palindrome (122102201221).

The spelling of 100000201220 in words is "one hundred billion, two hundred one thousand, two hundred twenty".