2222101220 has 96 divisors (see below), whose sum is σ = 4931297280. Its totient is φ = 839946240.

The previous prime is 2222101201. The next prime is 2222101253. The reversal of 2222101220 is 221012222.

It is a junction number, because it is equal to n+sod(n) for n = 2222101195 and 2222101204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7144865 + ... + 7145175.

It is an arithmetic number, because the mean of its divisors is an integer number (51367680).

Almost surely, 2^2222101220 is an apocalyptic number.

2222101220 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 2222101220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2465648640).

2222101220 is an abundant number, since it is smaller than the sum of its proper divisors (2709196060).

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

2222101220 is a wasteful number, since it uses less digits than its factorization.

2222101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2222101220 is about 47139.1686392537. The cubic root of 2222101220 is about 1304.9321945755.

Adding to 2222101220 its reverse (221012222), we get a palindrome (2443113442).

It can be divided in two parts, 2 and 222101220, that added together give a palindrome (222101222).

The spelling of 2222101220 in words is "two billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty".