221232201222 has 8 divisors (see below), whose sum is σ = 442464402456. Its totient is φ = 73744067072.

The previous prime is 221232201209. The next prime is 221232201331. The reversal of 221232201222 is 222102232122.

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

221232201222 is an admirable number.

It is a congruent 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, 18436016763 + ... + 18436016774.

It is an arithmetic number, because the mean of its divisors is an integer number (55308050307).

Almost surely, 2^221232201222 is an apocalyptic number.

221232201222 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.

221232201222 is a wasteful number, since it uses less digits than its factorization.

221232201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36872033542.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 221232201222 its reverse (222102232122), we get a palindrome (443334433344).

The spelling of 221232201222 in words is "two hundred twenty-one billion, two hundred thirty-two million, two hundred one thousand, two hundred twenty-two".