1215024251412 has 24 divisors (see below), whose sum is σ = 2847769851136. Its totient is φ = 403191903168.

The previous prime is 1215024251401. The next prime is 1215024251423. The reversal of 1215024251412 is 2141524205121.

It is an interprime number because it is at equal distance from previous prime (1215024251401) and next prime (1215024251423).

It is a self number, because there is not a number n which added to its sum of digits gives 1215024251412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227019793 + ... + 227025144.

Almost surely, 2^{1215024251412} is an apocalyptic number.

1215024251412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1215024251412 is an abundant number, since it is smaller than the sum of its proper divisors (1632745599724).

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

1215024251412 is a wasteful number, since it uses less digits than its factorization.

1215024251412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454045167 (or 454045165 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 1215024251412 its reverse (2141524205121), we get a palindrome (3356548456533).

The spelling of 1215024251412 in words is "one trillion, two hundred fifteen billion, twenty-four million, two hundred fifty-one thousand, four hundred twelve".