1222255204 has 6 divisors (see below), whose sum is σ = 2138946614. Its totient is φ = 611127600.

The previous prime is 1222255169. The next prime is 1222255219. The reversal of 1222255204 is 4025522221.

It can be written as a sum of positive squares in only one way, i.e., 1161446400 + 60808804 = 34080^2 + 7798^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152781897 + ... + 152781904.

Almost surely, 2^1222255204 is an apocalyptic number.

It is an amenable number.

1222255204 is a deficient number, since it is larger than the sum of its proper divisors (916691410).

1222255204 is a wasteful number, since it uses less digits than its factorization.

1222255204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305563805 (or 305563803 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1222255204 is about 34960.7666391914. The cubic root of 1222255204 is about 1069.1877272016.

Adding to 1222255204 its reverse (4025522221), we get a palindrome (5247777425).

The spelling of 1222255204 in words is "one billion, two hundred twenty-two million, two hundred fifty-five thousand, two hundred four".