1212232404 has 24 divisors (see below), whose sum is σ = 2897532288. Its totient is φ = 394221760.

The previous prime is 1212232403. The next prime is 1212232423. The reversal of 1212232404 is 4042322121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212232403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231452 + ... + 1232435.

It is an arithmetic number, because the mean of its divisors is an integer number (120730512).

Almost surely, 2^1212232404 is an apocalyptic number.

It is an amenable number.

1212232404 is an abundant number, since it is smaller than the sum of its proper divisors (1685299884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212232404 is a wasteful number, since it uses less digits than its factorization.

1212232404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463935 (or 2463933 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1212232404 is about 34817.1280263034. The cubic root of 1212232404 is about 1066.2571660305.

Adding to 1212232404 its reverse (4042322121), we get a palindrome (5254554525).

The spelling of 1212232404 in words is "one billion, two hundred twelve million, two hundred thirty-two thousand, four hundred four".