20122220220112 has 40 divisors (see below), whose sum is σ = 39105708929352. Its totient is φ = 10030470912000.

The previous prime is 20122220220073. The next prime is 20122220220119. The reversal of 20122220220112 is 21102202222102.

It can be written as a sum of positive squares in 4 ways, for example, as 682798131856 + 19439422088256 = 826316^2 + 4409016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20122220220112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122220220119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5466412 + ... + 8374132.

Almost surely, 2^{20122220220112} is an apocalyptic number.

It is an amenable number.

20122220220112 is a deficient number, since it is larger than the sum of its proper divisors (18983488709240).

20122220220112 is a wasteful number, since it uses less digits than its factorization.

20122220220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909047 (or 2909041 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20122220220112 its reverse (21102202222102), we get a palindrome (41224422442214).

The spelling of 20122220220112 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty million, two hundred twenty thousand, one hundred twelve".