2440444254121 has 16 divisors (see below), whose sum is σ = 2457763272448. Its totient is φ = 2423198332800.

The previous prime is 2440444254119. The next prime is 2440444254203. The reversal of 2440444254121 is 1214524440442.

It is a cyclic number.

It is not a de Polignac number, because 2440444254121 - 2¹ = 2440444254119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2440444254221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117845650 + ... + 117866356.

It is an arithmetic number, because the mean of its divisors is an integer number (153610204528).

Almost surely, 2^{2440444254121} is an apocalyptic number.

It is an amenable number.

2440444254121 is a deficient number, since it is larger than the sum of its proper divisors (17319018327).

2440444254121 is a wasteful number, since it uses less digits than its factorization.

2440444254121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22432.

The product of its (nonzero) digits is 163840, while the sum is 37.

Adding to 2440444254121 its reverse (1214524440442), we get a palindrome (3654968694563).

The spelling of 2440444254121 in words is "two trillion, four hundred forty billion, four hundred forty-four million, two hundred fifty-four thousand, one hundred twenty-one".