240352410001221 has 24 divisors (see below), whose sum is σ = 396773449285824. Its totient is φ = 137343813050880.

The previous prime is 240352410001189. The next prime is 240352410001241. The reversal of 240352410001221 is 122100014253042.

240352410001221 is a `hidden beast` number, since 2 + 4 + 0 + 3 + 524 + 10 + 0 + 0 + 122 + 1 = 666.

It is not a de Polignac number, because 240352410001221 - 2⁵ = 240352410001189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240352410001241) 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 23 ways as a sum of consecutive naturals, for example, 15465250 + ... + 26830556.

It is an arithmetic number, because the mean of its divisors is an integer number (16532227053576).

Almost surely, 2^{240352410001221} is an apocalyptic number.

240352410001221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

240352410001221 is a deficient number, since it is larger than the sum of its proper divisors (156421039284603).

240352410001221 is a wasteful number, since it uses less digits than its factorization.

240352410001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11701001 (or 11700998 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 240352410001221 its reverse (122100014253042), we get a palindrome (362452424254263).

The spelling of 240352410001221 in words is "two hundred forty trillion, three hundred fifty-two billion, four hundred ten million, one thousand, two hundred twenty-one".