221441222 has 4 divisors (see below), whose sum is σ = 332161836. Its totient is φ = 110720610.

The previous prime is 221441197. The next prime is 221441237. The reversal of 221441222 is 222144122.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 221441194 and 221441203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55360304 + ... + 55360307.

It is an arithmetic number, because the mean of its divisors is an integer number (83040459).

Almost surely, 2^221441222 is an apocalyptic number.

221441222 is a deficient number, since it is larger than the sum of its proper divisors (110720614).

221441222 is a wasteful number, since it uses less digits than its factorization.

221441222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110720613.

The product of its digits is 512, while the sum is 20.

The square root of 221441222 is about 14880.9012495883. The cubic root of 221441222 is about 604.9964455771.

Adding to 221441222 its reverse (222144122), we get a palindrome (443585344).

It can be divided in two parts, 22144122 and 2, that multiplied together give a palindrome (44288244).

The spelling of 221441222 in words is "two hundred twenty-one million, four hundred forty-one thousand, two hundred twenty-two".