12220110221 has 8 divisors (see below), whose sum is σ = 14115207744. Its totient is φ = 10455709120.

The previous prime is 12220110209. The next prime is 12220110223. The reversal of 12220110221 is 12201102221.

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 12220110221 - 2¹⁸ = 12219848077 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12220110196 and 12220110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220110223) 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, 32673905 + ... + 32674278.

It is an arithmetic number, because the mean of its divisors is an integer number (1764400968).

Almost surely, 2^12220110221 is an apocalyptic number.

12220110221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12220110221 is a deficient number, since it is larger than the sum of its proper divisors (1895097523).

12220110221 is a wasteful number, since it uses less digits than its factorization.

12220110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65348211.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220110221 its reverse (12201102221), we get a palindrome (24421212442).

It can be divided in two parts, 1 and 2220110221, that added together give a palindrome (2220110222).

The spelling of 12220110221 in words is "twelve billion, two hundred twenty million, one hundred ten thousand, two hundred twenty-one".