20012102022220 has 48 divisors (see below), whose sum is σ = 52395321662208. Its totient is φ = 6237538292160.

The previous prime is 20012102022217. The next prime is 20012102022259. The reversal of 20012102022220 is 2222020121002.

It is a junction number, because it is equal to n+sod(n) for n = 20012102022194 and 20012102022203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6497434182 + ... + 6497437261.

It is an arithmetic number, because the mean of its divisors is an integer number (1091569201296).

Almost surely, 2^{20012102022220} is an apocalyptic number.

20012102022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012102022220 is an abundant number, since it is smaller than the sum of its proper divisors (32383219639988).

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

20012102022220 is a wasteful number, since it uses less digits than its factorization.

20012102022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12994871470 (or 12994871468 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20012102022220 its reverse (2222020121002), we get a palindrome (22234122143222).

The spelling of 20012102022220 in words is "twenty trillion, twelve billion, one hundred two million, twenty-two thousand, two hundred twenty".