2100222108 has 120 divisors (see below), whose sum is σ = 5735545200. Its totient is φ = 669295872.

The previous prime is 2100222107. The next prime is 2100222121. The reversal of 2100222108 is 8012220012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100222101) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1004328 + ... + 1006416.

It is an arithmetic number, because the mean of its divisors is an integer number (47796210).

Almost surely, 2^2100222108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100222108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2867772600).

2100222108 is an abundant number, since it is smaller than the sum of its proper divisors (3635323092).

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

2100222108 is a wasteful number, since it uses less digits than its factorization.

2100222108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2100222108 is about 45828.1802824419. The cubic root of 2100222108 is about 1280.6243105193.

The spelling of 2100222108 in words is "two billion, one hundred million, two hundred twenty-two thousand, one hundred eight".