242111445211 has 4 divisors (see below), whose sum is σ = 243561214512. Its totient is φ = 240661675912.

The previous prime is 242111445139. The next prime is 242111445221. The reversal of 242111445211 is 112544111242.

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

It is a cyclic number.

It is not a de Polignac number, because 242111445211 - 2⁹ = 242111444699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242111445211.

It is not an unprimeable number, because it can be changed into a prime (242111445221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724884400 + ... + 724884733.

It is an arithmetic number, because the mean of its divisors is an integer number (60890303628).

Almost surely, 2^242111445211 is an apocalyptic number.

242111445211 is a deficient number, since it is larger than the sum of its proper divisors (1449769301).

242111445211 is a wasteful number, since it uses less digits than its factorization.

242111445211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449769300.

The product of its digits is 2560, while the sum is 28.

Adding to 242111445211 its reverse (112544111242), we get a palindrome (354655556453).

The spelling of 242111445211 in words is "two hundred forty-two billion, one hundred eleven million, four hundred forty-five thousand, two hundred eleven".