2221010000 has 200 divisors, whose sum is σ = 5980310688. Its totient is φ = 792000000.

The previous prime is 2221009981. The next prime is 2221010003. The reversal of 2221010000 is 101222.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2221010000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221010003) 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, 6709835 + ... + 6710165.

Almost surely, 2^2221010000 is an apocalyptic number.

2221010000 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 2221010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2990155344).

2221010000 is an abundant number, since it is smaller than the sum of its proper divisors (3759300688).

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

2221010000 is a wasteful number, since it uses less digits than its factorization.

2221010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2221010000 is about 47127.5927668707. The cubic root of 2221010000 is about 1304.7185527527.

Adding to 2221010000 its reverse (101222), we get a palindrome (2221111222).

The spelling of 2221010000 in words is "two billion, two hundred twenty-one million, ten thousand".