1212080404 has 24 divisors (see below), whose sum is σ = 2289692160. Its totient is φ = 559700064.

The previous prime is 1212080383. The next prime is 1212080423. The reversal of 1212080404 is 4040802121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224484 + ... + 229819.

It is an arithmetic number, because the mean of its divisors is an integer number (95403840).

Almost surely, 2^1212080404 is an apocalyptic number.

It is an amenable number.

1212080404 is a deficient number, since it is larger than the sum of its proper divisors (1077611756).

1212080404 is a wasteful number, since it uses less digits than its factorization.

1212080404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454359 (or 454357 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1212080404 is about 34814.9451241848. The cubic root of 1212080404 is about 1066.2125987063.

Adding to 1212080404 its reverse (4040802121), we get a palindrome (5252882525).

The spelling of 1212080404 in words is "one billion, two hundred twelve million, eighty thousand, four hundred four".