2540033042221 has 12 divisors (see below), whose sum is σ = 2655444984192. Its totient is φ = 2429437477016.

The previous prime is 2540033042203. The next prime is 2540033042249. The reversal of 2540033042221 is 1222403300452.

It is not a de Polignac number, because 2540033042221 - 2⁷ = 2540033042093 is a prime.

It is a super-2 number, since 2×2540033042221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2540033042221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540033042291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8350020 + ... + 8648866.

It is an arithmetic number, because the mean of its divisors is an integer number (221287082016).

Almost surely, 2^{2540033042221} is an apocalyptic number.

It is an amenable number.

2540033042221 is a deficient number, since it is larger than the sum of its proper divisors (115411941971).

2540033042221 is a wasteful number, since it uses less digits than its factorization.

2540033042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314960 (or 314937 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 2540033042221 its reverse (1222403300452), we get a palindrome (3762436342673).

The spelling of 2540033042221 in words is "two trillion, five hundred forty billion, thirty-three million, forty-two thousand, two hundred twenty-one".