242323101221 has 4 divisors (see below), whose sum is σ = 242373411852. Its totient is φ = 242272790592.

The previous prime is 242323101187. The next prime is 242323101239. The reversal of 242323101221 is 122101323242.

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 126885564100 + 115437537121 = 356210^2 + 339761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242323101221 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 (242323101121) 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, 25148090 + ... + 25157723.

It is an arithmetic number, because the mean of its divisors is an integer number (60593352963).

Almost surely, 2^242323101221 is an apocalyptic number.

It is an amenable number.

242323101221 is a deficient number, since it is larger than the sum of its proper divisors (50310631).

242323101221 is an equidigital number, since it uses as much as digits as its factorization.

242323101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50310630.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 242323101221 its reverse (122101323242), we get a palindrome (364424424463).

The spelling of 242323101221 in words is "two hundred forty-two billion, three hundred twenty-three million, one hundred one thousand, two hundred twenty-one".