1240240301221 has 8 divisors (see below), whose sum is σ = 1249788838520. Its totient is φ = 1230712636608.

The previous prime is 1240240301149. The next prime is 1240240301227. The reversal of 1240240301221 is 1221030420421.

It can be written as a sum of positive squares in 4 ways, for example, as 37239350625 + 1203000950596 = 192975^2 + 1096814^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240240301221 - 2¹¹ = 1240240299173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240240301192 and 1240240301201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240240301227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5098866 + ... + 5336563.

It is an arithmetic number, because the mean of its divisors is an integer number (156223604815).

Almost surely, 2^{1240240301221} is an apocalyptic number.

It is an amenable number.

1240240301221 is a deficient number, since it is larger than the sum of its proper divisors (9548537299).

1240240301221 is a wasteful number, since it uses less digits than its factorization.

1240240301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10436343.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1240240301221 its reverse (1221030420421), we get a palindrome (2461270721642).

The spelling of 1240240301221 in words is "one trillion, two hundred forty billion, two hundred forty million, three hundred one thousand, two hundred twenty-one".