100001110221 has 32 divisors (see below), whose sum is σ = 149085421440. Its totient is φ = 66247372800.

The previous prime is 100001110217. The next prime is 100001110247. The reversal of 100001110221 is 122011100001.

It is a happy number.

It is not a de Polignac number, because 100001110221 - 2² = 100001110217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001110421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3706701 + ... + 3733581.

It is an arithmetic number, because the mean of its divisors is an integer number (4658919420).

Almost surely, 2^100001110221 is an apocalyptic number.

It is an amenable number.

100001110221 is a deficient number, since it is larger than the sum of its proper divisors (49084311219).

100001110221 is a wasteful number, since it uses less digits than its factorization.

100001110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27754 (or 27748 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100001110221 its reverse (122011100001), we get a palindrome (222012210222).

The spelling of 100001110221 in words is "one hundred billion, one million, one hundred ten thousand, two hundred twenty-one".