221123113242 has 8 divisors (see below), whose sum is σ = 442246226496. Its totient is φ = 73707704412.

The previous prime is 221123113219. The next prime is 221123113297. The reversal of 221123113242 is 242311321122.

It is a sphenic number, since it is the product of 3 distinct primes.

221123113242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18426926098 + ... + 18426926109.

It is an arithmetic number, because the mean of its divisors is an integer number (55280778312).

Almost surely, 2^221123113242 is an apocalyptic number.

221123113242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221123113242 is a wasteful number, since it uses less digits than its factorization.

221123113242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36853852212.

The product of its digits is 1152, while the sum is 24.

Adding to 221123113242 its reverse (242311321122), we get a palindrome (463434434364).

The spelling of 221123113242 in words is "two hundred twenty-one billion, one hundred twenty-three million, one hundred thirteen thousand, two hundred forty-two".