1222313 has 4 divisors (see below), whose sum is σ = 1224528. Its totient is φ = 1220100.

The previous prime is 1222307. The next prime is 1222373. The reversal of 1222313 is 3132221.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3132221 = 47 ⋅66643.

It is a cyclic number.

It is not a de Polignac number, because 1222313 - 2⁸ = 1222057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222373) 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, 470 + ... + 1632.

It is an arithmetic number, because the mean of its divisors is an integer number (306132).

2^1222313 is an apocalyptic number.

It is an amenable number.

1222313 is a deficient number, since it is larger than the sum of its proper divisors (2215).

1222313 is a wasteful number, since it uses less digits than its factorization.

1222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214.

The product of its digits is 72, while the sum is 14.

The square root of 1222313 is about 1105.5826518176. The cubic root of 1222313 is about 106.9204579601.

Adding to 1222313 its reverse (3132221), we get a palindrome (4354534).

The spelling of 1222313 in words is "one million, two hundred twenty-two thousand, three hundred thirteen".