20112201122210 has 64 divisors (see below), whose sum is σ = 36824608735200. Its totient is φ = 7907639427072.

The previous prime is 20112201122203. The next prime is 20112201122213. The reversal of 20112201122210 is 1222110221102.

It can be written as a sum of positive squares in 16 ways, for example, as 109043267089 + 20003157855121 = 330217^2 + 4472489^2 .

It is not an unprimeable number, because it can be changed into a prime (20112201122213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245418362 + ... + 245500298.

Almost surely, 2^{20112201122210} is an apocalyptic number.

20112201122210 is a deficient number, since it is larger than the sum of its proper divisors (16712407612990).

20112201122210 is a wasteful number, since it uses less digits than its factorization.

20112201122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83655.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112201122210 its reverse (1222110221102), we get a palindrome (21334311343312).

The spelling of 20112201122210 in words is "twenty trillion, one hundred twelve billion, two hundred one million, one hundred twenty-two thousand, two hundred ten".