2412542540221 has 24 divisors (see below), whose sum is σ = 2721361181112. Its totient is φ = 2135883340800.

The previous prime is 2412542540209. The next prime is 2412542540269. The reversal of 2412542540221 is 1220452452142.

It can be written as a sum of positive squares in 4 ways, for example, as 115726514596 + 2296816025625 = 340186^2 + 1515525^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2412542540221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2412542540281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2326741 + ... + 3199813.

It is an arithmetic number, because the mean of its divisors is an integer number (113390049213).

Almost surely, 2^{2412542540221} is an apocalyptic number.

It is an amenable number.

2412542540221 is a deficient number, since it is larger than the sum of its proper divisors (308818640891).

2412542540221 is a wasteful number, since it uses less digits than its factorization.

2412542540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873693 (or 873682 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 2412542540221 its reverse (1220452452142), we get a palindrome (3632994992363).

The spelling of 2412542540221 in words is "two trillion, four hundred twelve billion, five hundred forty-two million, five hundred forty thousand, two hundred twenty-one".