1310222 has 4 divisors (see below), whose sum is σ = 1965336. Its totient is φ = 655110.

The previous prime is 1310209. The next prime is 1310233. The reversal of 1310222 is 2220131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2220131 = 19 ⋅116849.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327554 + ... + 327557.

It is an arithmetic number, because the mean of its divisors is an integer number (491334).

2^1310222 is an apocalyptic number.

1310222 is a deficient number, since it is larger than the sum of its proper divisors (655114).

1310222 is an equidigital number, since it uses as much as digits as its factorization.

1310222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655113.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1310222 is about 1144.6492912679. The cubic root of 1310222 is about 109.4245986750.

Adding to 1310222 its reverse (2220131), we get a palindrome (3530353).

Subtracting 1310222 from its reverse (2220131), we obtain a palindrome (909909).

The spelling of 1310222 in words is "one million, three hundred ten thousand, two hundred twenty-two".