242006221255 has 4 divisors (see below), whose sum is σ = 290407465512. Its totient is φ = 193604977000.

The previous prime is 242006221253. The next prime is 242006221273. The reversal of 242006221255 is 552122600242.

242006221255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 242006221255 - 2¹ = 242006221253 is a prime.

It is a super-2 number, since 2×242006221255² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242006221253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24200622121 + ... + 24200622130.

It is an arithmetic number, because the mean of its divisors is an integer number (72601866378).

Almost surely, 2^242006221255 is an apocalyptic number.

242006221255 is a deficient number, since it is larger than the sum of its proper divisors (48401244257).

242006221255 is an equidigital number, since it uses as much as digits as its factorization.

242006221255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48401244256.

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

Adding to 242006221255 its reverse (552122600242), we get a palindrome (794128821497).

The spelling of 242006221255 in words is "two hundred forty-two billion, six million, two hundred twenty-one thousand, two hundred fifty-five".