12221001220110 has 128 divisors (see below), whose sum is σ = 30345286348800. Its totient is φ = 3146651842560.

The previous prime is 12221001220073. The next prime is 12221001220111. The reversal of 12221001220110 is 1102210012221.

12221001220110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12221001220110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221001220111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1460266006 + ... + 1460274374.

It is an arithmetic number, because the mean of its divisors is an integer number (237072549600).

Almost surely, 2^{12221001220110} is an apocalyptic number.

12221001220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12221001220110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15172643174400).

12221001220110 is an abundant number, since it is smaller than the sum of its proper divisors (18124285128690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221001220110 is a wasteful number, since it uses less digits than its factorization.

12221001220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12221001220110 its reverse (1102210012221), we get a palindrome (13323211232331).

The spelling of 12221001220110 in words is "twelve trillion, two hundred twenty-one billion, one million, two hundred twenty thousand, one hundred ten".