2110121210109 has 16 divisors (see below), whose sum is σ = 3099656003904. Its totient is φ = 1266199344000.

The previous prime is 2110121210081. The next prime is 2110121210203. The reversal of 2110121210109 is 9010121210112.

It is not a de Polignac number, because 2110121210109 - 2¹² = 2110121206013 is a prime.

It is a super-2 number, since 2×2110121210109² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110121210809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316546504 + ... + 316553169.

It is an arithmetic number, because the mean of its divisors is an integer number (193728500244).

Almost surely, 2^{2110121210109} is an apocalyptic number.

It is an amenable number.

2110121210109 is a deficient number, since it is larger than the sum of its proper divisors (989534793795).

2110121210109 is a wasteful number, since it uses less digits than its factorization.

2110121210109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633099788.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 2110121210109 in words is "two trillion, one hundred ten billion, one hundred twenty-one million, two hundred ten thousand, one hundred nine".