221122132113 has 4 divisors (see below), whose sum is σ = 294829509488. Its totient is φ = 147414754740.

The previous prime is 221122132067. The next prime is 221122132129. The reversal of 221122132113 is 311231221122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 221122132113 - 2¹⁰ = 221122131089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221122132113.

It is not an unprimeable number, because it can be changed into a prime (221122132163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36853688683 + ... + 36853688688.

It is an arithmetic number, because the mean of its divisors is an integer number (73707377372).

Almost surely, 2^221122132113 is an apocalyptic number.

It is an amenable number.

221122132113 is a deficient number, since it is larger than the sum of its proper divisors (73707377375).

221122132113 is an equidigital number, since it uses as much as digits as its factorization.

221122132113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73707377374.

The product of its digits is 288, while the sum is 21.

Adding to 221122132113 its reverse (311231221122), we get a palindrome (532353353235).

The spelling of 221122132113 in words is "two hundred twenty-one billion, one hundred twenty-two million, one hundred thirty-two thousand, one hundred thirteen".