1222304404 has 6 divisors (see below), whose sum is σ = 2139032714. Its totient is φ = 611152200.

The previous prime is 1222304401. The next prime is 1222304407. The reversal of 1222304404 is 4044032221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222304401) and next prime (1222304407).

It can be written as a sum of positive squares in only one way, i.e., 1001722500 + 220581904 = 31650^2 + 14852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222304401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152788047 + ... + 152788054.

Almost surely, 2^1222304404 is an apocalyptic number.

It is an amenable number.

1222304404 is a deficient number, since it is larger than the sum of its proper divisors (916728310).

1222304404 is a wasteful number, since it uses less digits than its factorization.

1222304404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305576105 (or 305576103 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1222304404 is about 34961.4702780075. The cubic root of 1222304404 is about 1069.2020731773.

Adding to 1222304404 its reverse (4044032221), we get a palindrome (5266336625).

The spelling of 1222304404 in words is "one billion, two hundred twenty-two million, three hundred four thousand, four hundred four".