11100223221 has 8 divisors (see below), whose sum is σ = 15200305824. Its totient is φ = 7200144720.

The previous prime is 11100223217. The next prime is 11100223241. The reversal of 11100223221 is 12232200111.

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

It is not a de Polignac number, because 11100223221 - 2² = 11100223217 is a prime.

It is a super-2 number, since 2×11100223221² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11100223221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100223241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50000895 + ... + 50001116.

It is an arithmetic number, because the mean of its divisors is an integer number (1900038228).

Almost surely, 2^11100223221 is an apocalyptic number.

It is an amenable number.

11100223221 is a deficient number, since it is larger than the sum of its proper divisors (4100082603).

11100223221 is a wasteful number, since it uses less digits than its factorization.

11100223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100002051.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11100223221 its reverse (12232200111), we get a palindrome (23332423332).

The spelling of 11100223221 in words is "eleven billion, one hundred million, two hundred twenty-three thousand, two hundred twenty-one".