242222315251 has 8 divisors (see below), whose sum is σ = 278274852864. Its totient is φ = 206532115080.

The previous prime is 242222315219. The next prime is 242222315267. The reversal of 242222315251 is 152513222242.

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 242222315251 - 2⁵ = 242222315219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242222315281) 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, 90582925 + ... + 90585598.

It is an arithmetic number, because the mean of its divisors is an integer number (34784356608).

Almost surely, 2^242222315251 is an apocalyptic number.

242222315251 is a deficient number, since it is larger than the sum of its proper divisors (36052537613).

242222315251 is a wasteful number, since it uses less digits than its factorization.

242222315251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181168721.

The product of its digits is 19200, while the sum is 31.

Adding to 242222315251 its reverse (152513222242), we get a palindrome (394735537493).

The spelling of 242222315251 in words is "two hundred forty-two billion, two hundred twenty-two million, three hundred fifteen thousand, two hundred fifty-one".