202012110120 has 128 divisors (see below), whose sum is σ = 623148733440. Its totient is φ = 52352225280.

The previous prime is 202012110017. The next prime is 202012110121. The reversal of 202012110120 is 21011210202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 202012110096 and 202012110105.

It is not an unprimeable number, because it can be changed into a prime (202012110121) 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 31 ways as a sum of consecutive naturals, for example, 3805360 + ... + 3858080.

It is an arithmetic number, because the mean of its divisors is an integer number (4868349480).

Almost surely, 2^202012110120 is an apocalyptic number.

202012110120 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 202012110120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311574366720).

202012110120 is an abundant number, since it is smaller than the sum of its proper divisors (421136623320).

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

202012110120 is a wasteful number, since it uses less digits than its factorization.

202012110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53635 (or 53631 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202012110120 its reverse (21011210202), we get a palindrome (223023320322).

The spelling of 202012110120 in words is "two hundred two billion, twelve million, one hundred ten thousand, one hundred twenty".