111100101211001 has 8 divisors (see below), whose sum is σ = 132492046164864. Its totient is φ = 91088281738080.

The previous prime is 111100101210947. The next prime is 111100101211019. The reversal of 111100101211001 is 100112101001111.

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 111100101211001 - 2⁴² = 106702054699897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100101216001) 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, 345031370060 + ... + 345031370381.

It is an arithmetic number, because the mean of its divisors is an integer number (16561505770608).

Almost surely, 2^{111100101211001} is an apocalyptic number.

It is an amenable number.

111100101211001 is a deficient number, since it is larger than the sum of its proper divisors (21391944953863).

111100101211001 is an equidigital number, since it uses as much as digits as its factorization.

111100101211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690062740471.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 111100101211001 its reverse (100112101001111), we get a palindrome (211212202212112).

The spelling of 111100101211001 in words is "one hundred eleven trillion, one hundred billion, one hundred one million, two hundred eleven thousand, one".