100021221113 has 8 divisors (see below), whose sum is σ = 109181977920. Its totient is φ = 90871784080.

The previous prime is 100021221077. The next prime is 100021221119. The reversal of 100021221113 is 311122120001.

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

It is a de Polignac number, because none of the positive numbers 2^k-100021221113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021221119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811458 + ... + 2846811.

It is an arithmetic number, because the mean of its divisors is an integer number (13647747240).

Almost surely, 2^100021221113 is an apocalyptic number.

It is an amenable number.

100021221113 is a deficient number, since it is larger than the sum of its proper divisors (9160756807).

100021221113 is a wasteful number, since it uses less digits than its factorization.

100021221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659887.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 100021221113 its reverse (311122120001), we get a palindrome (411143341114).

The spelling of 100021221113 in words is "one hundred billion, twenty-one million, two hundred twenty-one thousand, one hundred thirteen".