110121001001 has 8 divisors (see below), whose sum is σ = 120161159424. Its totient is φ = 100085702320.

The previous prime is 110121000991. The next prime is 110121001033. The reversal of 110121001001 is 100100121011.

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 a de Polignac number, because none of the positive numbers 2^k-110121001001 is a prime.

It is a super-2 number, since 2×110121001001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110121001001.

It is not an unprimeable number, because it can be changed into a prime (110121001301) 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, 1167470 + ... + 1258263.

It is an arithmetic number, because the mean of its divisors is an integer number (15020144928).

Almost surely, 2^110121001001 is an apocalyptic number.

110121001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110121001001 is a deficient number, since it is larger than the sum of its proper divisors (10040158423).

110121001001 is a wasteful number, since it uses less digits than its factorization.

110121001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429871.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 110121001001 its reverse (100100121011), we get a palindrome (210221122012).

The spelling of 110121001001 in words is "one hundred ten billion, one hundred twenty-one million, one thousand, one".