1215052412 has 36 divisors (see below), whose sum is σ = 2514073464. Its totient is φ = 512195040.

The previous prime is 1215052381. The next prime is 1215052427. The reversal of 1215052412 is 2142505121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38858 + ... + 62769.

It is an arithmetic number, because the mean of its divisors is an integer number (69835374).

Almost surely, 2^1215052412 is an apocalyptic number.

It is an amenable number.

1215052412 is an abundant number, since it is smaller than the sum of its proper divisors (1299021052).

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

1215052412 is a wasteful number, since it uses less digits than its factorization.

1215052412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101706 (or 101697 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1215052412 is about 34857.6019255485. The cubic root of 1215052412 is about 1067.0833346566.

Adding to 1215052412 its reverse (2142505121), we get a palindrome (3357557533).

The spelling of 1215052412 in words is "one billion, two hundred fifteen million, fifty-two thousand, four hundred twelve".