121110121122001 has 16 divisors (see below), whose sum is σ = 139806239044608. Its totient is φ = 103829865000400.

The previous prime is 121110121121893. The next prime is 121110121122013. The reversal of 121110121122001 is 100221121011121.

It is a de Polignac number, because none of the positive numbers 2^k-121110121122001 is a prime.

It is a super-2 number, since 2×121110121122001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121110121132001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3371081551 + ... + 3371117476.

It is an arithmetic number, because the mean of its divisors is an integer number (8737889940288).

Almost surely, 2^{121110121122001} is an apocalyptic number.

121110121122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121110121122001 is a deficient number, since it is larger than the sum of its proper divisors (18696117922607).

121110121122001 is a wasteful number, since it uses less digits than its factorization.

121110121122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6742199132.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121110121122001 its reverse (100221121011121), we get a palindrome (221331242133122).

The spelling of 121110121122001 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twenty-one million, one hundred twenty-two thousand, one".