22120222210 has 8 divisors (see below), whose sum is σ = 39816399996. Its totient is φ = 8848088880.

The previous prime is 22120222181. The next prime is 22120222211. The reversal of 22120222210 is 1222202122.

It can be written as a sum of positive squares in 2 ways, for example, as 20290008249 + 1830213961 = 142443^2 + 42781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22120222211) 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 3 ways as a sum of consecutive naturals, for example, 1106011101 + ... + 1106011120.

Almost surely, 2^22120222210 is an apocalyptic number.

22120222210 is a deficient number, since it is larger than the sum of its proper divisors (17696177786).

22120222210 is a wasteful number, since it uses less digits than its factorization.

22120222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212022228.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22120222210 its reverse (1222202122), we get a palindrome (23342424332).

The spelling of 22120222210 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred ten".