220102011220 has 144 divisors (see below), whose sum is σ = 609513932160. Its totient is φ = 65992340736.

The previous prime is 220102011179. The next prime is 220102011223. The reversal of 220102011220 is 22110201022.

It is a happy number.

220102011220 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 (13).

It is a self number, because there is not a number n which added to its sum of digits gives 220102011220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220102011223) 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 47 ways as a sum of consecutive naturals, for example, 212584 + ... + 696703.

It is an arithmetic number, because the mean of its divisors is an integer number (4232735640).

Almost surely, 2^220102011220 is an apocalyptic number.

220102011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220102011220 is an abundant number, since it is smaller than the sum of its proper divisors (389411920940).

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

220102011220 is a wasteful number, since it uses less digits than its factorization.

220102011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909342 (or 909333 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220102011220 its reverse (22110201022), we get a palindrome (242212212242).

The spelling of 220102011220 in words is "two hundred twenty billion, one hundred two million, eleven thousand, two hundred twenty".