20112102211120 has 80 divisors (see below), whose sum is σ = 47911362976512. Its totient is φ = 7846950379520.

The previous prime is 20112102211039. The next prime is 20112102211141. The reversal of 20112102211120 is 2111220121102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20112102211094 and 20112102211103.

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, 14773944 + ... + 16077736.

Almost surely, 2^{20112102211120} is an apocalyptic number.

20112102211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112102211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23955681488256).

20112102211120 is an abundant number, since it is smaller than the sum of its proper divisors (27799260765392).

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

20112102211120 is a wasteful number, since it uses less digits than its factorization.

20112102211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308550 (or 1308544 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20112102211120 its reverse (2111220121102), we get a palindrome (22223322332222).

The spelling of 20112102211120 in words is "twenty trillion, one hundred twelve billion, one hundred two million, two hundred eleven thousand, one hundred twenty".