1312222223 has 8 divisors (see below), whose sum is σ = 1413690768. Its totient is φ = 1210829184.

The previous prime is 1312222217. The next prime is 1312222237. The reversal of 1312222223 is 3222222131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312222223 - 2¹⁰ = 1312221199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312222195 and 1312222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312222273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20240 + ... + 55082.

It is an arithmetic number, because the mean of its divisors is an integer number (176711346).

Almost surely, 2^1312222223 is an apocalyptic number.

1312222223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312222223 is a deficient number, since it is larger than the sum of its proper divisors (101468545).

1312222223 is a wasteful number, since it uses less digits than its factorization.

1312222223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37753.

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

The square root of 1312222223 is about 36224.6079757946. The cubic root of 1312222223 is about 1094.8025395421.

Adding to 1312222223 its reverse (3222222131), we get a palindrome (4534444354).

The spelling of 1312222223 in words is "one billion, three hundred twelve million, two hundred twenty-two thousand, two hundred twenty-three".