100221032080 has 40 divisors (see below), whose sum is σ = 250938048312. Its totient is φ = 37004688384.

The previous prime is 100221032077. The next prime is 100221032081. The reversal of 100221032080 is 80230122001.

It can be written as a sum of positive squares in 4 ways, for example, as 2104240384 + 98116791696 = 45872^2 + 313236^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (100221032081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48182149 + ... + 48184228.

Almost surely, 2^100221032080 is an apocalyptic number.

100221032080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221032080 is an abundant number, since it is smaller than the sum of its proper divisors (150717016232).

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

100221032080 is a wasteful number, since it uses less digits than its factorization.

100221032080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96366403 (or 96366397 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 100221032080 its reverse (80230122001), we get a palindrome (180451154081).

The spelling of 100221032080 in words is "one hundred billion, two hundred twenty-one million, thirty-two thousand, eighty".