11223322221 has 8 divisors (see below), whose sum is σ = 15368873824. Its totient is φ = 7279992720.

The previous prime is 11223322193. The next prime is 11223322223. The reversal of 11223322221 is 12222332211.

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

It is not a de Polignac number, because 11223322221 - 2⁵ = 11223322189 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 (11223322223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50555395 + ... + 50555616.

It is an arithmetic number, because the mean of its divisors is an integer number (1921109228).

Almost surely, 2^11223322221 is an apocalyptic number.

It is an amenable number.

11223322221 is a deficient number, since it is larger than the sum of its proper divisors (4145551603).

11223322221 is a wasteful number, since it uses less digits than its factorization.

11223322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101111051.

The product of its digits is 576, while the sum is 21.

Adding to 11223322221 its reverse (12222332211), we get a palindrome (23445654432).

The spelling of 11223322221 in words is "eleven billion, two hundred twenty-three million, three hundred twenty-two thousand, two hundred twenty-one".