20100220020112 has 80 divisors (see below), whose sum is σ = 43632528768000. Its totient is φ = 8914171668480.

The previous prime is 20100220020053. The next prime is 20100220020151. The reversal of 20100220020112 is 21102002200102.

It is a happy number.

It is a super-2 number, since 2×20100220020112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20100220020092 and 20100220020101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9194487 + ... + 11168662.

It is an arithmetic number, because the mean of its divisors is an integer number (545406609600).

Almost surely, 2^{20100220020112} is an apocalyptic number.

It is an amenable number.

20100220020112 is an abundant number, since it is smaller than the sum of its proper divisors (23532308747888).

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

20100220020112 is a wasteful number, since it uses less digits than its factorization.

20100220020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20363384 (or 20363378 counting only the distinct ones).

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

Adding to 20100220020112 its reverse (21102002200102), we get a palindrome (41202222220214).

The spelling of 20100220020112 in words is "twenty trillion, one hundred billion, two hundred twenty million, twenty thousand, one hundred twelve".