1222304013 has 40 divisors (see below), whose sum is σ = 2137692480. Its totient is φ = 681410880.

The previous prime is 1222304011. The next prime is 1222304021. The reversal of 1222304013 is 3104032221.

It is not a de Polignac number, because 1222304013 - 2¹ = 1222304011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222304011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3043 + ... + 49536.

It is an arithmetic number, because the mean of its divisors is an integer number (53442312).

Almost surely, 2^1222304013 is an apocalyptic number.

It is an amenable number.

1222304013 is a deficient number, since it is larger than the sum of its proper divisors (915388467).

1222304013 is an equidigital number, since it uses as much as digits as its factorization.

1222304013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52639 (or 52630 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1222304013 is about 34961.4646861369. The cubic root of 1222304013 is about 1069.2019591691.

Adding to 1222304013 its reverse (3104032221), we get a palindrome (4326336234).

The spelling of 1222304013 in words is "one billion, two hundred twenty-two million, three hundred four thousand, thirteen".