2211202201220 has 96 divisors (see below), whose sum is σ = 4884024757248. Its totient is φ = 839310671232.

The previous prime is 2211202201213. The next prime is 2211202201253. The reversal of 2211202201220 is 221022021122.

It is a happy number.

2211202201220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29513447 + ... + 29588273.

It is an arithmetic number, because the mean of its divisors is an integer number (50875257888).

Almost surely, 2^{2211202201220} is an apocalyptic number.

2211202201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211202201220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2442012378624).

2211202201220 is an abundant number, since it is smaller than the sum of its proper divisors (2672822556028).

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

2211202201220 is a wasteful number, since it uses less digits than its factorization.

2211202201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75369 (or 75367 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2211202201220 its reverse (221022021122), we get a palindrome (2432224222342).

The spelling of 2211202201220 in words is "two trillion, two hundred eleven billion, two hundred two million, two hundred one thousand, two hundred twenty".