2115563563212 has 24 divisors (see below), whose sum is σ = 5385070888512. Its totient is φ = 641079867600.

The previous prime is 2115563563199. The next prime is 2115563563231. The reversal of 2115563563212 is 2123653655112.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8013498214 + ... + 8013498477.

It is an arithmetic number, because the mean of its divisors is an integer number (224377953688).

Almost surely, 2^{2115563563212} is an apocalyptic number.

2115563563212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2115563563212 is an abundant number, since it is smaller than the sum of its proper divisors (3269507325300).

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

2115563563212 is a wasteful number, since it uses less digits than its factorization.

2115563563212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16026996709 (or 16026996707 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The spelling of 2115563563212 in words is "two trillion, one hundred fifteen billion, five hundred sixty-three million, five hundred sixty-three thousand, two hundred twelve".