242112421205 has 12 divisors (see below), whose sum is σ = 297793967556. Its totient is φ = 188965785600.

The previous prime is 242112421183. The next prime is 242112421211. The reversal of 242112421205 is 502124211242.

It can be written as a sum of positive squares in 6 ways, for example, as 22063240369 + 220049180836 = 148537^2 + 469094^2 .

It is not a de Polignac number, because 242112421205 - 2¹⁰ = 242112420181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14394476 + ... + 14411285.

It is an arithmetic number, because the mean of its divisors is an integer number (24816163963).

Almost surely, 2^242112421205 is an apocalyptic number.

It is an amenable number.

242112421205 is a deficient number, since it is larger than the sum of its proper divisors (55681546351).

242112421205 is an equidigital number, since it uses as much as digits as its factorization.

242112421205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28805848 (or 28805807 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 242112421205 its reverse (502124211242), we get a palindrome (744236632447).

The spelling of 242112421205 in words is "two hundred forty-two billion, one hundred twelve million, four hundred twenty-one thousand, two hundred five".