221011133123113 has 8 divisors (see below), whose sum is σ = 223846430368680. Its totient is φ = 218187199795200.

The previous prime is 221011133122963. The next prime is 221011133123191. The reversal of 221011133123113 is 311321331110122.

It can be written as a sum of positive squares in 4 ways, for example, as 152153532512809 + 68857600610304 = 12335053^2 + 8298048^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221011133123113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221011133123213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840940268 + ... + 2841018061.

It is an arithmetic number, because the mean of its divisors is an integer number (27980803796085).

Almost surely, 2^{221011133123113} is an apocalyptic number.

It is an amenable number.

221011133123113 is a deficient number, since it is larger than the sum of its proper divisors (2835297245567).

221011133123113 is an equidigital number, since it uses as much as digits as its factorization.

221011133123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681958827.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 221011133123113 its reverse (311321331110122), we get a palindrome (532332464233235).

The spelling of 221011133123113 in words is "two hundred twenty-one trillion, eleven billion, one hundred thirty-three million, one hundred twenty-three thousand, one hundred thirteen".