220111221102 has 16 divisors (see below), whose sum is σ = 446792927232. Its totient is φ = 72275326200.

The previous prime is 220111221089. The next prime is 220111221107. The reversal of 220111221102 is 201122111022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111221107) 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, 273769774 + ... + 273770577.

It is an arithmetic number, because the mean of its divisors is an integer number (27924557952).

Almost surely, 2^220111221102 is an apocalyptic number.

220111221102 is an abundant number, since it is smaller than the sum of its proper divisors (226681706130).

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

220111221102 is a wasteful number, since it uses less digits than its factorization.

220111221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547540423.

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

Adding to 220111221102 its reverse (201122111022), we get a palindrome (421233332124).

The spelling of 220111221102 in words is "two hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, one hundred two".