100221112111 has 8 divisors (see below), whose sum is σ = 106292955744. Its totient is φ = 94292135520.

The previous prime is 100221112109. The next prime is 100221112133. The reversal of 100221112111 is 111211122001.

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 not a de Polignac number, because 100221112111 - 2¹ = 100221112109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100221112091 and 100221112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221112141) 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, 35715316 + ... + 35718121.

It is an arithmetic number, because the mean of its divisors is an integer number (13286619468).

Almost surely, 2^100221112111 is an apocalyptic number.

100221112111 is a deficient number, since it is larger than the sum of its proper divisors (6071843633).

100221112111 is an equidigital number, since it uses as much as digits as its factorization.

100221112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71433521.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100221112111 its reverse (111211122001), we get a palindrome (211432234112).

The spelling of 100221112111 in words is "one hundred billion, two hundred twenty-one million, one hundred twelve thousand, one hundred eleven".