22002222205 has 16 divisors (see below), whose sum is σ = 29427122880. Its totient is φ = 15694463232.

The previous prime is 22002222191. The next prime is 22002222293. The reversal of 22002222205 is 50222220022.

It is a cyclic number.

It is not a de Polignac number, because 22002222205 - 2²¹ = 22000125053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6810219 + ... + 6813448.

It is an arithmetic number, because the mean of its divisors is an integer number (1839195180).

Almost surely, 2^22002222205 is an apocalyptic number.

It is an amenable number.

22002222205 is a deficient number, since it is larger than the sum of its proper divisors (7424900675).

22002222205 is a wasteful number, since it uses less digits than its factorization.

22002222205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13623708.

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 22002222205 its reverse (50222220022), we get a palindrome (72224442227).

The spelling of 22002222205 in words is "twenty-two billion, two million, two hundred twenty-two thousand, two hundred five".