1220223233305 has 16 divisors (see below), whose sum is σ = 1478017301904. Its totient is φ = 967054842880.

The previous prime is 1220223233297. The next prime is 1220223233321. The reversal of 1220223233305 is 5033323220221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3428922249 + 1216794311056 = 58557^2 + 1103084^2 .

It is not a de Polignac number, because 1220223233305 - 2³ = 1220223233297 is a prime.

It is a super-2 number, since 2×1220223233305² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2428876 + ... + 2887885.

It is an arithmetic number, because the mean of its divisors is an integer number (92376081369).

Almost surely, 2^{1220223233305} is an apocalyptic number.

It is an amenable number.

1220223233305 is a deficient number, since it is larger than the sum of its proper divisors (257794068599).

1220223233305 is a wasteful number, since it uses less digits than its factorization.

1220223233305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317196.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 1220223233305 its reverse (5033323220221), we get a palindrome (6253546453526).

The spelling of 1220223233305 in words is "one trillion, two hundred twenty billion, two hundred twenty-three million, two hundred thirty-three thousand, three hundred five".