12215027833266 has 32 divisors (see below), whose sum is σ = 24459150867840. Its totient is φ = 4066827657984.

The previous prime is 12215027833213. The next prime is 12215027833291. The reversal of 12215027833266 is 66233872051221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56095536 + ... + 56312868.

It is an arithmetic number, because the mean of its divisors is an integer number (764348464620).

Almost surely, 2^{12215027833266} is an apocalyptic number.

12215027833266 is an abundant number, since it is smaller than the sum of its proper divisors (12244123034574).

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

12215027833266 is a wasteful number, since it uses less digits than its factorization.

12215027833266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228450.

The product of its (nonzero) digits is 1451520, while the sum is 48.

Adding to 12215027833266 its reverse (66233872051221), we get a palindrome (78448899884487).

The spelling of 12215027833266 in words is "twelve trillion, two hundred fifteen billion, twenty-seven million, eight hundred thirty-three thousand, two hundred sixty-six".