110121210009999 has 24 divisors (see below), whose sum is σ = 167452695421440. Its totient is φ = 69543202319568.

The previous prime is 110121210009971. The next prime is 110121210010043. The reversal of 110121210009999 is 999900012121011.

It is not a de Polignac number, because 110121210009999 - 2⁹ = 110121210009487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121210007999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30876517 + ... + 34257870.

It is an arithmetic number, because the mean of its divisors is an integer number (6977195642560).

Almost surely, 2^{110121210009999} is an apocalyptic number.

110121210009999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

110121210009999 is a deficient number, since it is larger than the sum of its proper divisors (57331485411441).

110121210009999 is a wasteful number, since it uses less digits than its factorization.

110121210009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65144299 (or 65144296 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 45.

The spelling of 110121210009999 in words is "one hundred ten trillion, one hundred twenty-one billion, two hundred ten million, nine thousand, nine hundred ninety-nine".