1351222 has 4 divisors (see below), whose sum is σ = 2026836. Its totient is φ = 675610.

The previous prime is 1351213. The next prime is 1351241. The reversal of 1351222 is 2221531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2221531 = 13 ⋅170887.

It is a junction number, because it is equal to n+sod(n) for n = 1351196 and 1351205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337804 + ... + 337807.

It is an arithmetic number, because the mean of its divisors is an integer number (506709).

2^1351222 is an apocalyptic number.

1351222 is a deficient number, since it is larger than the sum of its proper divisors (675614).

1351222 is an equidigital number, since it uses as much as digits as its factorization.

1351222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675613.

The product of its digits is 120, while the sum is 16.

The square root of 1351222 is about 1162.4207499869. The cubic root of 1351222 is about 110.5542822098.

Adding to 1351222 its reverse (2221531), we get a palindrome (3572753).

The spelling of 1351222 in words is "one million, three hundred fifty-one thousand, two hundred twenty-two".