100221433 has 8 divisors (see below), whose sum is σ = 110441408. Its totient is φ = 90360144.

The previous prime is 100221427. The next prime is 100221487. The reversal of 100221433 is 334122001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100221433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100221133) 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, 89085 + ... + 90202.

It is an arithmetic number, because the mean of its divisors is an integer number (13805176).

Almost surely, 2^100221433 is an apocalyptic number.

100221433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

100221433 is a deficient number, since it is larger than the sum of its proper divisors (10219975).

100221433 is a wasteful number, since it uses less digits than its factorization.

100221433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179343.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100221433 is about 10011.0655277048. The cubic root of 100221433 is about 464.5012311086.

Adding to 100221433 its reverse (334122001), we get a palindrome (434343434).

The spelling of 100221433 in words is "one hundred million, two hundred twenty-one thousand, four hundred thirty-three".