2222187005 has 4 divisors (see below), whose sum is σ = 2666624412. Its totient is φ = 1777749600.

The previous prime is 2222187001. The next prime is 2222187029. The reversal of 2222187005 is 5007812222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 834400996 + 1387786009 = 28886^2 + 37253^2 .

It is not a de Polignac number, because 2222187005 - 2² = 2222187001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222187001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222218696 + ... + 222218705.

It is an arithmetic number, because the mean of its divisors is an integer number (666656103).

Almost surely, 2^2222187005 is an apocalyptic number.

It is an amenable number.

2222187005 is a deficient number, since it is larger than the sum of its proper divisors (444437407).

2222187005 is an equidigital number, since it uses as much as digits as its factorization.

2222187005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444437406.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 2222187005 is about 47140.0785425735. The cubic root of 2222187005 is about 1304.9489868150.

Adding to 2222187005 its reverse (5007812222), we get a palindrome (7229999227).

The spelling of 2222187005 in words is "two billion, two hundred twenty-two million, one hundred eighty-seven thousand, five".