1304220122 has 4 divisors (see below), whose sum is σ = 1956330186. Its totient is φ = 652110060.

The previous prime is 1304220121. The next prime is 1304220133. The reversal of 1304220122 is 2210224031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2210224031 = 23 ⋅96096697.

It can be written as a sum of positive squares in only one way, i.e., 1259611081 + 44609041 = 35491^2 + 6679^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1304220122.

It is not an unprimeable number, because it can be changed into a prime (1304220121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326055029 + ... + 326055032.

Almost surely, 2^1304220122 is an apocalyptic number.

1304220122 is a deficient number, since it is larger than the sum of its proper divisors (652110064).

1304220122 is an equidigital number, since it uses as much as digits as its factorization.

1304220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652110063.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1304220122 is about 36113.9878994276. The cubic root of 1304220122 is about 1092.5725846553.

Adding to 1304220122 its reverse (2210224031), we get a palindrome (3514444153).

The spelling of 1304220122 in words is "one billion, three hundred four million, two hundred twenty thousand, one hundred twenty-two".