110000221221 has 16 divisors (see below), whose sum is σ = 160040623680. Its totient is φ = 66650008320.

The previous prime is 110000221207. The next prime is 110000221231. The reversal of 110000221221 is 122122000011.

It is not a de Polignac number, because 110000221221 - 2⁵ = 110000221189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110000221197 and 110000221206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110000221231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286180 + ... + 549453.

It is an arithmetic number, because the mean of its divisors is an integer number (10002538980).

Almost surely, 2^110000221221 is an apocalyptic number.

110000221221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110000221221 is a deficient number, since it is larger than the sum of its proper divisors (50040402459).

110000221221 is a wasteful number, since it uses less digits than its factorization.

110000221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839636.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 110000221221 its reverse (122122000011), we get a palindrome (232122221232).

The spelling of 110000221221 in words is "one hundred ten billion, two hundred twenty-one thousand, two hundred twenty-one".