221330122122 has 8 divisors (see below), whose sum is σ = 442660244256. Its totient is φ = 73776707372.

The previous prime is 221330122103. The next prime is 221330122151. The reversal of 221330122122 is 221221033122.

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

221330122122 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18444176838 + ... + 18444176849.

It is an arithmetic number, because the mean of its divisors is an integer number (55332530532).

Almost surely, 2^221330122122 is an apocalyptic number.

221330122122 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.

221330122122 is a wasteful number, since it uses less digits than its factorization.

221330122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36888353692.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221330122122 its reverse (221221033122), we get a palindrome (442551155244).

The spelling of 221330122122 in words is "two hundred twenty-one billion, three hundred thirty million, one hundred twenty-two thousand, one hundred twenty-two".