100221982 has 8 divisors (see below), whose sum is σ = 171809136. Its totient is φ = 42952272.

The previous prime is 100221931. The next prime is 100221983. The reversal of 100221982 is 289122001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221983) 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, 3579343 + ... + 3579370.

It is an arithmetic number, because the mean of its divisors is an integer number (21476142).

Almost surely, 2^100221982 is an apocalyptic number.

100221982 is a deficient number, since it is larger than the sum of its proper divisors (71587154).

100221982 is an equidigital number, since it uses as much as digits as its factorization.

100221982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158722.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 100221982 is about 10011.0929473260. The cubic root of 100221982 is about 464.5020792662.

Adding to 100221982 its reverse (289122001), we get a palindrome (389343983).

The spelling of 100221982 in words is "one hundred million, two hundred twenty-one thousand, nine hundred eighty-two".