241221401555015 has 16 divisors (see below), whose sum is σ = 338886651942720. Its totient is φ = 161374596161280.

The previous prime is 241221401554999. The next prime is 241221401555039. The reversal of 241221401555015 is 510555104122142.

It is not a de Polignac number, because 241221401555015 - 2⁴ = 241221401554999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 241221401555015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84049267400 + ... + 84049270269.

It is an arithmetic number, because the mean of its divisors is an integer number (21180415746420).

Almost surely, 2^{241221401555015} is an apocalyptic number.

241221401555015 is a deficient number, since it is larger than the sum of its proper divisors (97665250387705).

241221401555015 is a wasteful number, since it uses less digits than its factorization.

241221401555015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168098537722.

The product of its (nonzero) digits is 80000, while the sum is 38.

Adding to 241221401555015 its reverse (510555104122142), we get a palindrome (751776505677157).

The spelling of 241221401555015 in words is "two hundred forty-one trillion, two hundred twenty-one billion, four hundred one million, five hundred fifty-five thousand, fifteen".