1212404124 has 12 divisors (see below), whose sum is σ = 2828942984. Its totient is φ = 404134704.

The previous prime is 1212404111. The next prime is 1212404159. The reversal of 1212404124 is 4214042121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1212404124.

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 3 ways as a sum of consecutive naturals, for example, 50516827 + ... + 50516850.

Almost surely, 2^1212404124 is an apocalyptic number.

It is an amenable number.

1212404124 is an abundant number, since it is smaller than the sum of its proper divisors (1616538860).

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

1212404124 is a wasteful number, since it uses less digits than its factorization.

1212404124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101033684 (or 101033682 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1212404124 is about 34819.5939666160. The cubic root of 1212404124 is about 1066.3075108970.

Adding to 1212404124 its reverse (4214042121), we get a palindrome (5426446245).

The spelling of 1212404124 in words is "one billion, two hundred twelve million, four hundred four thousand, one hundred twenty-four".