2211100220 has 48 divisors (see below), whose sum is σ = 5321792448. Its totient is φ = 755927040.

The previous prime is 2211100201. The next prime is 2211100249. The reversal of 2211100220 is 220011122.

It is a happy number.

2211100220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27050 + ... + 71790.

It is an arithmetic number, because the mean of its divisors is an integer number (110870676).

Almost surely, 2^2211100220 is an apocalyptic number.

2211100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211100220 is an abundant number, since it is smaller than the sum of its proper divisors (3110692228).

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

2211100220 is a wasteful number, since it uses less digits than its factorization.

2211100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45110 (or 45108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2211100220 is about 47022.3374578508. The cubic root of 2211100220 is about 1302.7751799397.

Adding to 2211100220 its reverse (220011122), we get a palindrome (2431111342).

The spelling of 2211100220 in words is "two billion, two hundred eleven million, one hundred thousand, two hundred twenty".