1220041223 has 18 divisors (see below), whose sum is σ = 1296633312. Its totient is φ = 1147908160.

The previous prime is 1220041213. The next prime is 1220041247. The reversal of 1220041223 is 3221400221.

It is not a de Polignac number, because 1220041223 - 2⁸ = 1220040967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220041213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1413290 + ... + 1414152.

It is an arithmetic number, because the mean of its divisors is an integer number (72035184).

Almost surely, 2^1220041223 is an apocalyptic number.

1220041223 is a deficient number, since it is larger than the sum of its proper divisors (76592089).

1220041223 is an frugal number, since it uses more digits than its factorization.

1220041223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1220041223 is about 34929.0884936896. The cubic root of 1220041223 is about 1068.5417649863.

Adding to 1220041223 its reverse (3221400221), we get a palindrome (4441441444).

The spelling of 1220041223 in words is "one billion, two hundred twenty million, forty-one thousand, two hundred twenty-three".