2210222144 has 56 divisors (see below), whose sum is σ = 4765288920. Its totient is φ = 1011032064.

The previous prime is 2210222143. The next prime is 2210222171. The reversal of 2210222144 is 4412220122.

It can be written as a sum of positive squares in 4 ways, for example, as 86118400 + 2124103744 = 9280^2 + 46088^2 .

It is not an unprimeable number, because it can be changed into a prime (2210222143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82262 + ... + 105770.

It is an arithmetic number, because the mean of its divisors is an integer number (85094445).

Almost surely, 2^2210222144 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 2210222144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2382644460).

2210222144 is an abundant number, since it is smaller than the sum of its proper divisors (2555066776).

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

2210222144 is a wasteful number, since it uses less digits than its factorization.

2210222144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23647 (or 23637 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2210222144 is about 47012.9997341161. Note that the first 3 decimals coincide. The cubic root of 2210222144 is about 1302.6027036510.

Adding to 2210222144 its reverse (4412220122), we get a palindrome (6622442266).

The spelling of 2210222144 in words is "two billion, two hundred ten million, two hundred twenty-two thousand, one hundred forty-four".