100001133221 has 4 divisors (see below), whose sum is σ = 109092145344. Its totient is φ = 90910121100.

The previous prime is 100001133157. The next prime is 100001133233. The reversal of 100001133221 is 122331100001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100001133221 - 2⁶ = 100001133157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100001133196 and 100001133205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001133821) 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, 4545506045 + ... + 4545506066.

It is an arithmetic number, because the mean of its divisors is an integer number (27273036336).

Almost surely, 2^100001133221 is an apocalyptic number.

100001133221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100001133221 is a deficient number, since it is larger than the sum of its proper divisors (9091012123).

100001133221 is an equidigital number, since it uses as much as digits as its factorization.

100001133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9091012122.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 100001133221 its reverse (122331100001), we get a palindrome (222332233222).

The spelling of 100001133221 in words is "one hundred billion, one million, one hundred thirty-three thousand, two hundred twenty-one".