121000110122001 has 16 divisors (see below), whose sum is σ = 176002310274048. Its totient is φ = 73332504200400.

The previous prime is 121000110121999. The next prime is 121000110122033. The reversal of 121000110122001 is 100221011000121.

It is not a de Polignac number, because 121000110122001 - 2¹ = 121000110121999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121000110122201) 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, 19649605 + ... + 25062066.

It is an arithmetic number, because the mean of its divisors is an integer number (11000144392128).

Almost surely, 2^{121000110122001} is an apocalyptic number.

121000110122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121000110122001 is a deficient number, since it is larger than the sum of its proper divisors (55002200152047).

121000110122001 is a wasteful number, since it uses less digits than its factorization.

121000110122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44793692.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121000110122001 its reverse (100221011000121), we get a palindrome (221221121122122).

The spelling of 121000110122001 in words is "one hundred twenty-one trillion, one hundred ten million, one hundred twenty-two thousand, one".