20012110220 has 24 divisors (see below), whose sum is σ = 42045987984. Its totient is φ = 8000928576.

The previous prime is 20012110199. The next prime is 20012110253. The reversal of 20012110220 is 2201121002.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202634 + ... + 284753.

It is an arithmetic number, because the mean of its divisors is an integer number (1751916166).

Almost surely, 2^20012110220 is an apocalyptic number.

20012110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012110220 is an abundant number, since it is smaller than the sum of its proper divisors (22033877764).

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

20012110220 is a wasteful number, since it uses less digits than its factorization.

20012110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489449 (or 489447 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20012110220 its reverse (2201121002), we get a palindrome (22213231222).

The spelling of 20012110220 in words is "twenty billion, twelve million, one hundred ten thousand, two hundred twenty".