221201333232222 has 64 divisors (see below), whose sum is σ = 506814369375744. Its totient is φ = 63048971825280.

The previous prime is 221201333232193. The next prime is 221201333232233. The reversal of 221201333232222 is 222232333102122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221201333232222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1164140928 + ... + 1164330924.

It is an arithmetic number, because the mean of its divisors is an integer number (7918974521496).

Almost surely, 2^{221201333232222} is an apocalyptic number.

221201333232222 is an abundant number, since it is smaller than the sum of its proper divisors (285613036143522).

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

221201333232222 is a wasteful number, since it uses less digits than its factorization.

221201333232222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256273.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 221201333232222 its reverse (222232333102122), we get a palindrome (443433666334344).

The spelling of 221201333232222 in words is "two hundred twenty-one trillion, two hundred one billion, three hundred thirty-three million, two hundred thirty-two thousand, two hundred twenty-two".