111110121001 has 8 divisors (see below), whose sum is σ = 121367856384. Its totient is φ = 100878521520.

The previous prime is 111110120999. The next prime is 111110121019. The reversal of 111110121001 is 100121011111.

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 111110121001 - 2¹ = 111110120999 is a prime.

It is a super-2 number, since 2×111110121001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110121301) 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, 6525081 + ... + 6542086.

It is an arithmetic number, because the mean of its divisors is an integer number (15170982048).

Almost surely, 2^111110121001 is an apocalyptic number.

111110121001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111110121001 is a deficient number, since it is larger than the sum of its proper divisors (10257735383).

111110121001 is a wasteful number, since it uses less digits than its factorization.

111110121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13067951.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 111110121001 its reverse (100121011111), we get a palindrome (211231132112).

The spelling of 111110121001 in words is "one hundred eleven billion, one hundred ten million, one hundred twenty-one thousand, one".