221120222 has 8 divisors (see below), whose sum is σ = 332508672. Its totient is φ = 110284000.

The previous prime is 221120219. The next prime is 221120231. The reversal of 221120222 is 222021122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221120197 and 221120206.

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, 137054 + ... + 138657.

It is an arithmetic number, because the mean of its divisors is an integer number (41563584).

Almost surely, 2^221120222 is an apocalyptic number.

221120222 is a deficient number, since it is larger than the sum of its proper divisors (111388450).

221120222 is a wasteful number, since it uses less digits than its factorization.

221120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276114.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 221120222 is about 14870.1117009927. Note that the first 3 decimals coincide. The cubic root of 221120222 is about 604.7039710145.

Adding to 221120222 its reverse (222021122), we get a palindrome (443141344).

The spelling of 221120222 in words is "two hundred twenty-one million, one hundred twenty thousand, two hundred twenty-two".