20002112220100 has 18 divisors (see below), whose sum is σ = 43404583517834. Its totient is φ = 8000844888000.

The previous prime is 20002112220073. The next prime is 20002112220107. The reversal of 20002112220100 is 102221120002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 274372725636 + 19727739494464 = 523806^2 + 4441592^2 .

It is not an unprimeable number, because it can be changed into a prime (20002112220107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100010561001 + ... + 100010561200.

Almost surely, 2^{20002112220100} is an apocalyptic number.

20002112220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002112220100 is an abundant number, since it is smaller than the sum of its proper divisors (23402471297734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20002112220100 is a wasteful number, since it uses less digits than its factorization.

20002112220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200021122215 (or 200021122208 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20002112220100 its reverse (102221120002), we get a palindrome (20104333340102).

The spelling of 20002112220100 in words is "twenty trillion, two billion, one hundred twelve million, two hundred twenty thousand, one hundred".