1217056602211 has 4 divisors (see below), whose sum is σ = 1246740909624. Its totient is φ = 1187372294800.

The previous prime is 1217056602199. The next prime is 1217056602221. The reversal of 1217056602211 is 1122066507121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1217056602211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1217056602221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14842153645 + ... + 14842153726.

It is an arithmetic number, because the mean of its divisors is an integer number (311685227406).

Almost surely, 2^{1217056602211} is an apocalyptic number.

1217056602211 is a deficient number, since it is larger than the sum of its proper divisors (29684307413).

1217056602211 is an equidigital number, since it uses as much as digits as its factorization.

1217056602211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29684307412.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 1217056602211 in words is "one trillion, two hundred seventeen billion, fifty-six million, six hundred two thousand, two hundred eleven".