221133311101 has 4 divisors (see below), whose sum is σ = 230747802912. Its totient is φ = 211518819292.

The previous prime is 221133311071. The next prime is 221133311143. The reversal of 221133311101 is 101113331122.

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 221133311101 - 2⁷ = 221133310973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221133381101) 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, 4807245871 + ... + 4807245916.

It is an arithmetic number, because the mean of its divisors is an integer number (57686950728).

Almost surely, 2^221133311101 is an apocalyptic number.

It is an amenable number.

221133311101 is a deficient number, since it is larger than the sum of its proper divisors (9614491811).

221133311101 is an equidigital number, since it uses as much as digits as its factorization.

221133311101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9614491810.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 221133311101 its reverse (101113331122), we get a palindrome (322246642223).

The spelling of 221133311101 in words is "two hundred twenty-one billion, one hundred thirty-three million, three hundred eleven thousand, one hundred one".