2222131140 has 72 divisors (see below), whose sum is σ = 6764605848. Its totient is φ = 590446080.

The previous prime is 2222131103. The next prime is 2222131151. The reversal of 2222131140 is 411312222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30206016 + 2191925124 = 5496^2 + 46818^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28614 + ... + 72546.

It is an arithmetic number, because the mean of its divisors is an integer number (93952859).

Almost surely, 2^2222131140 is an apocalyptic number.

2222131140 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 2222131140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3382302924).

2222131140 is an abundant number, since it is smaller than the sum of its proper divisors (4542474708).

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

2222131140 is a wasteful number, since it uses less digits than its factorization.

2222131140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44229 (or 44224 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2222131140 is about 47139.4859963492. The cubic root of 2222131140 is about 1304.9380514038.

Adding to 2222131140 its reverse (411312222), we get a palindrome (2633443362).

It can be divided in two parts, 22221 and 31140, that added together give a square (53361 = 231²).

The spelling of 2222131140 in words is "two billion, two hundred twenty-two million, one hundred thirty-one thousand, one hundred forty".