20102112233220 has 24 divisors (see below), whose sum is σ = 56285914253184. Its totient is φ = 5360563262176.

The previous prime is 20102112233207. The next prime is 20102112233239. The reversal of 20102112233220 is 2233221120102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167517601884 + ... + 167517602003.

It is an arithmetic number, because the mean of its divisors is an integer number (2345246427216).

Almost surely, 2^{20102112233220} is an apocalyptic number.

20102112233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102112233220 is an abundant number, since it is smaller than the sum of its proper divisors (36183802019964).

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

20102112233220 is a wasteful number, since it uses less digits than its factorization.

20102112233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335035203899 (or 335035203897 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20102112233220 its reverse (2233221120102), we get a palindrome (22335333353322).

The spelling of 20102112233220 in words is "twenty trillion, one hundred two billion, one hundred twelve million, two hundred thirty-three thousand, two hundred twenty".