2131440224121 has 144 divisors (see below), whose sum is σ = 3686208926400. Its totient is φ = 1223116526592.

The previous prime is 2131440224119. The next prime is 2131440224149. The reversal of 2131440224121 is 1214220441312.

2131440224121 is a `hidden beast` number, since 2 + 1 + 3 + 14 + 402 + 241 + 2 + 1 = 666.

It is not a de Polignac number, because 2131440224121 - 2¹ = 2131440224119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2131440224021) 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 143 ways as a sum of consecutive naturals, for example, 99500950 + ... + 99522368.

It is an arithmetic number, because the mean of its divisors is an integer number (25598673100).

Almost surely, 2^{2131440224121} is an apocalyptic number.

It is an amenable number.

2131440224121 is a deficient number, since it is larger than the sum of its proper divisors (1554768702279).

2131440224121 is a wasteful number, since it uses less digits than its factorization.

2131440224121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21590 (or 21561 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 2131440224121 its reverse (1214220441312), we get a palindrome (3345660665433).

The spelling of 2131440224121 in words is "two trillion, one hundred thirty-one billion, four hundred forty million, two hundred twenty-four thousand, one hundred twenty-one".