100132133221 has 4 divisors (see below), whose sum is σ = 100133724492. Its totient is φ = 100130541952.

The previous prime is 100132133197. The next prime is 100132133239. The reversal of 100132133221 is 122331231001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30314640321 + 69817492900 = 174111^2 + 264230^2 .

It is a cyclic number.

It is not a de Polignac number, because 100132133221 - 2⁷ = 100132133093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100132133291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697186 + ... + 828451.

It is an arithmetic number, because the mean of its divisors is an integer number (25033431123).

Almost surely, 2^100132133221 is an apocalyptic number.

It is an amenable number.

100132133221 is a deficient number, since it is larger than the sum of its proper divisors (1591271).

100132133221 is an equidigital number, since it uses as much as digits as its factorization.

100132133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591270.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 100132133221 its reverse (122331231001), we get a palindrome (222463364222).

The spelling of 100132133221 in words is "one hundred billion, one hundred thirty-two million, one hundred thirty-three thousand, two hundred twenty-one".