2210221100 has 18 divisors (see below), whose sum is σ = 4796180004. Its totient is φ = 884088400.

The previous prime is 2210221067. The next prime is 2210221103. The reversal of 2210221100 is 11220122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2210221103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11051006 + ... + 11051205.

Almost surely, 2^2210221100 is an apocalyptic number.

2210221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210221100 is an abundant number, since it is smaller than the sum of its proper divisors (2585958904).

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

2210221100 is a wasteful number, since it uses less digits than its factorization.

2210221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22102225 (or 22102218 counting only the distinct ones).

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

The square root of 2210221100 is about 47012.9886308029. The cubic root of 2210221100 is about 1302.6024985559.

Adding to 2210221100 its reverse (11220122), we get a palindrome (2221441222).

The spelling of 2210221100 in words is "two billion, two hundred ten million, two hundred twenty-one thousand, one hundred".