1212312044 has 6 divisors (see below), whose sum is σ = 2121546084. Its totient is φ = 606156020.

The previous prime is 1212312019. The next prime is 1212312053. The reversal of 1212312044 is 4402132121.

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 as a sum of consecutive naturals, namely, 151539002 + ... + 151539009.

It is an arithmetic number, because the mean of its divisors is an integer number (353591014).

Almost surely, 2^1212312044 is an apocalyptic number.

It is an amenable number.

1212312044 is a deficient number, since it is larger than the sum of its proper divisors (909234040).

1212312044 is a wasteful number, since it uses less digits than its factorization.

1212312044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303078015 (or 303078013 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1212312044 is about 34818.2716974867. The cubic root of 1212312044 is about 1066.2805154754.

Adding to 1212312044 its reverse (4402132121), we get a palindrome (5614444165).

The spelling of 1212312044 in words is "one billion, two hundred twelve million, three hundred twelve thousand, forty-four".