20102220220112 has 20 divisors (see below), whose sum is σ = 38948142682020. Its totient is φ = 10051086624768.

The previous prime is 20102220220111. The next prime is 20102220220151. The reversal of 20102220220112 is 21102202220102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16584734974096 + 3517485246016 = 4072436^2 + 1875496^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102220220111) 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, 7114298 + ... + 9529830.

It is an arithmetic number, because the mean of its divisors is an integer number (1947407134101).

Almost surely, 2^{20102220220112} is an apocalyptic number.

It is an amenable number.

20102220220112 is a deficient number, since it is larger than the sum of its proper divisors (18845922461908).

20102220220112 is a wasteful number, since it uses less digits than its factorization.

20102220220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935670 (or 2935664 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20102220220112 its reverse (21102202220102), we get a palindrome (41204422440214).

The spelling of 20102220220112 in words is "twenty trillion, one hundred two billion, two hundred twenty million, two hundred twenty thousand, one hundred twelve".