1215002112552 has 96 divisors (see below), whose sum is σ = 3464065488000. Its totient is φ = 383657886720.

The previous prime is 1215002112539. The next prime is 1215002112553. The reversal of 1215002112552 is 2552112005121.

1215002112552 is a `hidden beast` number, since 12 + 1 + 500 + 21 + 125 + 5 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1215002112553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29899224 + ... + 29939832.

It is an arithmetic number, because the mean of its divisors is an integer number (36084015500).

Almost surely, 2^{1215002112552} is an apocalyptic number.

1215002112552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1215002112552 is an abundant number, since it is smaller than the sum of its proper divisors (2249063375448).

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

1215002112552 is a wasteful number, since it uses less digits than its factorization.

1215002112552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62511 (or 62504 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 1215002112552 its reverse (2552112005121), we get a palindrome (3767114117673).

The spelling of 1215002112552 in words is "one trillion, two hundred fifteen billion, two million, one hundred twelve thousand, five hundred fifty-two".