221120012222 has 8 divisors (see below), whose sum is σ = 332372462400. Its totient is φ = 110329191424.

The previous prime is 221120012221. The next prime is 221120012227. The reversal of 221120012222 is 222210021122.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 221120012222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120012221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115406147 + ... + 115408062.

It is an arithmetic number, because the mean of its divisors is an integer number (41546557800).

Almost surely, 2^221120012222 is an apocalyptic number.

221120012222 is a deficient number, since it is larger than the sum of its proper divisors (111252450178).

221120012222 is a wasteful number, since it uses less digits than its factorization.

221120012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230814690.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221120012222 its reverse (222210021122), we get a palindrome (443330033344).

The spelling of 221120012222 in words is "two hundred twenty-one billion, one hundred twenty million, twelve thousand, two hundred twenty-two".