22222000205 has 32 divisors (see below), whose sum is σ = 27964113408. Its totient is φ = 16934771200.

The previous prime is 22222000127. The next prime is 22222000223. The reversal of 22222000205 is 50200022222.

It is a happy number.

It is not a de Polignac number, because 22222000205 - 2⁸ = 22221999949 is a prime.

It is a super-2 number, since 2×22222000205² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4439234 + ... + 4444236.

It is an arithmetic number, because the mean of its divisors is an integer number (873878544).

Almost surely, 2^22222000205 is an apocalyptic number.

It is an amenable number.

22222000205 is a deficient number, since it is larger than the sum of its proper divisors (5742113203).

22222000205 is a wasteful number, since it uses less digits than its factorization.

22222000205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557.

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

Adding to 22222000205 its reverse (50200022222), we get a palindrome (72422022427).

The spelling of 22222000205 in words is "twenty-two billion, two hundred twenty-two million, two hundred five", and thus it is an aban number.