11210112221 has 8 divisors (see below), whose sum is σ = 13976243904. Its totient is φ = 8735152320.

The previous prime is 11210112187. The next prime is 11210112289. The reversal of 11210112221 is 12221101211.

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

It is a cyclic number.

It is not a de Polignac number, because 11210112221 - 2²² = 11205917917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11210112196 and 11210112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210112421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72792860 + ... + 72793013.

It is an arithmetic number, because the mean of its divisors is an integer number (1747030488).

Almost surely, 2^11210112221 is an apocalyptic number.

11210112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11210112221 is a deficient number, since it is larger than the sum of its proper divisors (2766131683).

11210112221 is a wasteful number, since it uses less digits than its factorization.

11210112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145585891.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11210112221 its reverse (12221101211), we get a palindrome (23431213432).

The spelling of 11210112221 in words is "eleven billion, two hundred ten million, one hundred twelve thousand, two hundred twenty-one".