242222631523421 has 16 divisors (see below), whose sum is σ = 256606557863040. Its totient is φ = 227853795018240.

The previous prime is 242222631523297. The next prime is 242222631523423. The reversal of 242222631523421 is 124325136222242.

It is a cyclic number.

It is not a de Polignac number, because 242222631523421 - 2¹⁰ = 242222631522397 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 (242222631523423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257948726 + ... + 258886056.

It is an arithmetic number, because the mean of its divisors is an integer number (16037909866440).

Almost surely, 2^{242222631523421} is an apocalyptic number.

It is an amenable number.

242222631523421 is a deficient number, since it is larger than the sum of its proper divisors (14383926339619).

242222631523421 is a wasteful number, since it uses less digits than its factorization.

242222631523421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945364.

The product of its digits is 552960, while the sum is 41.

Adding to 242222631523421 its reverse (124325136222242), we get a palindrome (366547767745663).

The spelling of 242222631523421 in words is "two hundred forty-two trillion, two hundred twenty-two billion, six hundred thirty-one million, five hundred twenty-three thousand, four hundred twenty-one".