242134341024221 has 4 divisors (see below), whose sum is σ = 248678512403292. Its totient is φ = 235590169645152.

The previous prime is 242134341024181. The next prime is 242134341024281. The reversal of 242134341024221 is 122420143431242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 168885905263321 + 73248435760900 = 12995611^2 + 8558530^2 .

It is a cyclic number.

It is not a de Polignac number, because 242134341024221 - 2⁶ = 242134341024157 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 (242134341024281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272085689480 + ... + 3272085689553.

It is an arithmetic number, because the mean of its divisors is an integer number (62169628100823).

Almost surely, 2^{242134341024221} is an apocalyptic number.

It is an amenable number.

242134341024221 is a deficient number, since it is larger than the sum of its proper divisors (6544171379071).

242134341024221 is an equidigital number, since it uses as much as digits as its factorization.

242134341024221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6544171379070.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 242134341024221 its reverse (122420143431242), we get a palindrome (364554484455463).

The spelling of 242134341024221 in words is "two hundred forty-two trillion, one hundred thirty-four billion, three hundred forty-one million, twenty-four thousand, two hundred twenty-one".