100020221200 has 60 divisors (see below), whose sum is σ = 240525660928. Its totient is φ = 39970281600.

The previous prime is 100020221183. The next prime is 100020221239. The reversal of 100020221200 is 2122020001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307585 + ... + 542815.

Almost surely, 2^100020221200 is an apocalyptic number.

100020221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020221200 is an abundant number, since it is smaller than the sum of its proper divisors (140505439728).

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

100020221200 is a wasteful number, since it uses less digits than its factorization.

100020221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236312 (or 236301 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 100020221200 its reverse (2122020001), we get a palindrome (102142241201).

The spelling of 100020221200 in words is "one hundred billion, twenty million, two hundred twenty-one thousand, two hundred".