221517221236883 has 48 divisors (see below), whose sum is σ = 269042653404000. Its totient is φ = 179803284710400.

The previous prime is 221517221236867. The next prime is 221517221236907. The reversal of 221517221236883 is 388632122715122.

It is not a de Polignac number, because 221517221236883 - 2⁴ = 221517221236867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221517221236823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278434043 + ... + 279228491.

It is an arithmetic number, because the mean of its divisors is an integer number (5605055279250).

Almost surely, 2^{221517221236883} is an apocalyptic number.

221517221236883 is a deficient number, since it is larger than the sum of its proper divisors (47525432167117).

221517221236883 is a wasteful number, since it uses less digits than its factorization.

221517221236883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796564 (or 796533 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 53.

The spelling of 221517221236883 in words is "two hundred twenty-one trillion, five hundred seventeen billion, two hundred twenty-one million, two hundred thirty-six thousand, eight hundred eighty-three".