20112220011020 has 24 divisors (see below), whose sum is σ = 42236086048800. Its totient is φ = 8044807237632.

The previous prime is 20112220011011. The next prime is 20112220011029. The reversal of 20112220011020 is 2011002221102.

It is an interprime number because it is at equal distance from previous prime (20112220011011) and next prime (20112220011029).

It is a junction number, because it is equal to n+sod(n) for n = 20112220010986 and 20112220011004.

It is not an unprimeable number, because it can be changed into a prime (20112220011029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2985440 + ... + 7009799.

It is an arithmetic number, because the mean of its divisors is an integer number (1759836918700).

Almost surely, 2^{20112220011020} is an apocalyptic number.

20112220011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112220011020 is an abundant number, since it is smaller than the sum of its proper divisors (22123866037780).

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

20112220011020 is a wasteful number, since it uses less digits than its factorization.

20112220011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095857 (or 10095855 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112220011020 its reverse (2011002221102), we get a palindrome (22123222232122).

The spelling of 20112220011020 in words is "twenty trillion, one hundred twelve billion, two hundred twenty million, eleven thousand, twenty".