1220223 has 8 divisors (see below), whose sum is σ = 1671088. Its totient is φ = 791424.

The previous prime is 1220203. The next prime is 1220239. The reversal of 1220223 is 3220221.

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

It is a de Polignac number, because none of the positive numbers 2^k-1220223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220199 and 1220208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5386 + ... + 5607.

It is an arithmetic number, because the mean of its divisors is an integer number (208886).

2^1220223 is an apocalyptic number.

1220223 is a deficient number, since it is larger than the sum of its proper divisors (450865).

1220223 is a wasteful number, since it uses less digits than its factorization.

1220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11033.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1220223 is about 1104.6370444630. The cubic root of 1220223 is about 106.8594830590.

Adding to 1220223 its reverse (3220221), we get a palindrome (4440444).

The spelling of 1220223 in words is "one million, two hundred twenty thousand, two hundred twenty-three".