1220413223 has 2 divisors, whose sum is σ = 1220413224. Its totient is φ = 1220413222.

The previous prime is 1220413213. The next prime is 1220413237. The reversal of 1220413223 is 3223140221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220413223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220413195 and 1220413204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220413213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610206611 + 610206612.

It is an arithmetic number, because the mean of its divisors is an integer number (610206612).

Almost surely, 2^1220413223 is an apocalyptic number.

1220413223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220413223 is an equidigital number, since it uses as much as digits as its factorization.

1220413223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1220413223 is about 34934.4131623819. The cubic root of 1220413223 is about 1068.6503561650.

Adding to 1220413223 its reverse (3223140221), we get a palindrome (4443553444).

The spelling of 1220413223 in words is "one billion, two hundred twenty million, four hundred thirteen thousand, two hundred twenty-three".