1220314369 has 4 divisors (see below), whose sum is σ = 1220398596. Its totient is φ = 1220230144.

The previous prime is 1220314357. The next prime is 1220314379. The reversal of 1220314369 is 9634130221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 807696400 + 412617969 = 28420^2 + 20313^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220314369 - 2¹¹ = 1220312321 is a prime.

It is a super-2 number, since 2×1220314369² = 2978334318375736322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220314369.

It is not an unprimeable number, because it can be changed into a prime (1220314339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14224 + ... + 51409.

It is an arithmetic number, because the mean of its divisors is an integer number (305099649).

Almost surely, 2^1220314369 is an apocalyptic number.

It is an amenable number.

1220314369 is a deficient number, since it is larger than the sum of its proper divisors (84227).

1220314369 is an equidigital number, since it uses as much as digits as its factorization.

1220314369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84226.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1220314369 is about 34932.9982824263. The cubic root of 1220314369 is about 1068.6215016719.

The spelling of 1220314369 in words is "one billion, two hundred twenty million, three hundred fourteen thousand, three hundred sixty-nine".