100221231100 has 36 divisors (see below), whose sum is σ = 217615585600. Its totient is φ = 40063512960.

The previous prime is 100221231073. The next prime is 100221231101. The reversal of 100221231100 is 1132122001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221231101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150540 + ... + 472339.

Almost surely, 2^100221231100 is an apocalyptic number.

100221231100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221231100 is an abundant number, since it is smaller than the sum of its proper divisors (117394354500).

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

100221231100 is a wasteful number, since it uses less digits than its factorization.

100221231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624502 (or 624495 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100221231100 its reverse (1132122001), we get a palindrome (101353353101).

The spelling of 100221231100 in words is "one hundred billion, two hundred twenty-one million, two hundred thirty-one thousand, one hundred".