12216526126803 has 24 divisors (see below), whose sum is σ = 18415301617440. Its totient is φ = 7789407943680.

The previous prime is 12216526126687. The next prime is 12216526126841. The reversal of 12216526126803 is 30862162561221.

12216526126803 is a `hidden beast` number, since 1 + 2 + 21 + 6 + 5 + 2 + 612 + 6 + 8 + 0 + 3 = 666.

It is not a de Polignac number, because 12216526126803 - 2¹⁸ = 12216525864659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12216526126303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1258288 + ... + 5100621.

It is an arithmetic number, because the mean of its divisors is an integer number (767304234060).

Almost surely, 2^{12216526126803} is an apocalyptic number.

12216526126803 is a deficient number, since it is larger than the sum of its proper divisors (6198775490637).

12216526126803 is a wasteful number, since it uses less digits than its factorization.

12216526126803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368219 (or 6368216 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 12216526126803 in words is "twelve trillion, two hundred sixteen billion, five hundred twenty-six million, one hundred twenty-six thousand, eight hundred three".