5122221666211 has 8 divisors (see below), whose sum is σ = 5516266561344. Its totient is φ = 4728180748800.

The previous prime is 5122221666157. The next prime is 5122221666239. The reversal of 5122221666211 is 1126661222215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5122221666211 - 2¹⁷ = 5122221535139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5122221666811) 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 7 ways as a sum of consecutive naturals, for example, 2018115 + ... + 3783811.

It is an arithmetic number, because the mean of its divisors is an integer number (689533320168).

Almost surely, 2^{5122221666211} is an apocalyptic number.

5122221666211 is a deficient number, since it is larger than the sum of its proper divisors (394044895133).

5122221666211 is a wasteful number, since it uses less digits than its factorization.

5122221666211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988861.

The product of its digits is 34560, while the sum is 37.

Adding to 5122221666211 its reverse (1126661222215), we get a palindrome (6248882888426).

The spelling of 5122221666211 in words is "five trillion, one hundred twenty-two billion, two hundred twenty-one million, six hundred sixty-six thousand, two hundred eleven".