221214321242 has 8 divisors (see below), whose sum is σ = 338881513536. Its totient is φ = 108253816732.

The previous prime is 221214321217. The next prime is 221214321269. The reversal of 221214321242 is 242123412122.

It is a happy number.

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

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, 1176671828 + ... + 1176672015.

It is an arithmetic number, because the mean of its divisors is an integer number (42360189192).

Almost surely, 2^221214321242 is an apocalyptic number.

221214321242 is a deficient number, since it is larger than the sum of its proper divisors (117667192294).

221214321242 is a wasteful number, since it uses less digits than its factorization.

221214321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353343892.

The product of its digits is 3072, while the sum is 26.

Adding to 221214321242 its reverse (242123412122), we get a palindrome (463337733364).

The spelling of 221214321242 in words is "two hundred twenty-one billion, two hundred fourteen million, three hundred twenty-one thousand, two hundred forty-two".