22222002005 has 48 divisors (see below), whose sum is σ = 31364598384. Its totient is φ = 15069358080.

The previous prime is 22222002001. The next prime is 22222002017. The reversal of 22222002005 is 50020022222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7246606129 + 14975395876 = 85127^2 + 122374^2 .

It is not a de Polignac number, because 22222002005 - 2² = 22222002001 is a prime.

It is a super-2 number, since 2×22222002005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222002001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23614835 + ... + 23615775.

It is an arithmetic number, because the mean of its divisors is an integer number (653429133).

Almost surely, 2^22222002005 is an apocalyptic number.

It is an amenable number.

22222002005 is a deficient number, since it is larger than the sum of its proper divisors (9142596379).

22222002005 is a wasteful number, since it uses less digits than its factorization.

22222002005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

Adding to 22222002005 its reverse (50020022222), we get a palindrome (72242024227).

The spelling of 22222002005 in words is "twenty-two billion, two hundred twenty-two million, two thousand, five".