1223122 has 4 divisors (see below), whose sum is σ = 1834686. Its totient is φ = 611560.

The previous prime is 1223119. The next prime is 1223149. The reversal of 1223122 is 2213221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 674041 + 549081 = 821^2 + 741^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305779 + ... + 305782.

2^1223122 is an apocalyptic number.

1223122 is a deficient number, since it is larger than the sum of its proper divisors (611564).

1223122 is an equidigital number, since it uses as much as digits as its factorization.

1223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611563.

The product of its digits is 48, while the sum is 13.

The square root of 1223122 is about 1105.9484617287. The cubic root of 1223122 is about 106.9440415469.

Adding to 1223122 its reverse (2213221), we get a palindrome (3436343).

Subtracting 1223122 from its reverse (2213221), we obtain a palindrome (990099).

The spelling of 1223122 in words is "one million, two hundred twenty-three thousand, one hundred twenty-two".