242122412405 has 4 divisors (see below), whose sum is σ = 290546894892. Its totient is φ = 193697929920.

The previous prime is 242122412353. The next prime is 242122412459. The reversal of 242122412405 is 504214221242.

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 173357315044 + 68765097361 = 416362^2 + 262231^2 .

It is not a de Polignac number, because 242122412405 - 2¹⁰ = 242122411381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24212241236 + ... + 24212241245.

It is an arithmetic number, because the mean of its divisors is an integer number (72636723723).

Almost surely, 2^242122412405 is an apocalyptic number.

It is an amenable number.

242122412405 is a deficient number, since it is larger than the sum of its proper divisors (48424482487).

242122412405 is an equidigital number, since it uses as much as digits as its factorization.

242122412405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48424482486.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 242122412405 its reverse (504214221242), we get a palindrome (746336633647).

The spelling of 242122412405 in words is "two hundred forty-two billion, one hundred twenty-two million, four hundred twelve thousand, four hundred five".