1317122229 has 4 divisors (see below), whose sum is σ = 1756162976. Its totient is φ = 878081484.

The previous prime is 1317122221. The next prime is 1317122231. The reversal of 1317122229 is 9222217131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1317122229 - 2³ = 1317122221 is a prime.

It is a super-2 number, since 2×1317122229² = 3469621932251856882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1317122196 and 1317122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317122221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219520369 + ... + 219520374.

It is an arithmetic number, because the mean of its divisors is an integer number (439040744).

Almost surely, 2^1317122229 is an apocalyptic number.

It is an amenable number.

1317122229 is a deficient number, since it is larger than the sum of its proper divisors (439040747).

1317122229 is an equidigital number, since it uses as much as digits as its factorization.

1317122229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439040746.

The product of its digits is 3024, while the sum is 30.

The square root of 1317122229 is about 36292.1786201931. The cubic root of 1317122229 is about 1096.1635578829.

The spelling of 1317122229 in words is "one billion, three hundred seventeen million, one hundred twenty-two thousand, two hundred twenty-nine".