2120110011121 has 4 divisors (see below), whose sum is σ = 2120420293092. Its totient is φ = 2119799729152.

The previous prime is 2120110011119. The next prime is 2120110011157. The reversal of 2120110011121 is 1211100110212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 628157694096 + 1491952317025 = 792564^2 + 1221455^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120110011121 - 2¹ = 2120110011119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120180011121) 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 3 ways as a sum of consecutive naturals, for example, 155130736 + ... + 155144401.

It is an arithmetic number, because the mean of its divisors is an integer number (530105073273).

Almost surely, 2^{2120110011121} is an apocalyptic number.

It is an amenable number.

2120110011121 is a deficient number, since it is larger than the sum of its proper divisors (310281971).

2120110011121 is an equidigital number, since it uses as much as digits as its factorization.

2120110011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310281970.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2120110011121 its reverse (1211100110212), we get a palindrome (3331210121333).

Subtracting from 2120110011121 its reverse (1211100110212), we obtain a palindrome (909009900909).

The spelling of 2120110011121 in words is "two trillion, one hundred twenty billion, one hundred ten million, eleven thousand, one hundred twenty-one".