2122210000 has 100 divisors (see below), whose sum is σ = 5362058592. Its totient is φ = 811888000.

The previous prime is 2122209989. The next prime is 2122210007. The reversal of 2122210000 is 122212.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122210007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 225387 + ... + 234613.

Almost surely, 2^2122210000 is an apocalyptic number.

2122210000 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 2122210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2681029296).

2122210000 is an abundant number, since it is smaller than the sum of its proper divisors (3239848592).

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

2122210000 is an equidigital number, since it uses as much as digits as its factorization.

2122210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278 (or 9257 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2122210000 is about 46067.4505480822. The cubic root of 2122210000 is about 1285.0778919914.

Adding to 2122210000 its reverse (122212), we get a palindrome (2122332212).

The spelling of 2122210000 in words is "two billion, one hundred twenty-two million, two hundred ten thousand".