20401101202020 has 192 divisors, whose sum is σ = 71738234136576. Its totient is φ = 4208246737920.

The previous prime is 20401101202019. The next prime is 20401101202021. The reversal of 20401101202020 is 2020210110402.

20401101202020 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (20401101202019) and next prime (20401101202021).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (20401101202021) 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 63 ways as a sum of consecutive naturals, for example, 15483202 + ... + 16749081.

It is an arithmetic number, because the mean of its divisors is an integer number (373636636128).

Almost surely, 2^{20401101202020} is an apocalyptic number.

20401101202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20401101202020 is an abundant number, since it is smaller than the sum of its proper divisors (51337132934556).

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

20401101202020 is a wasteful number, since it uses less digits than its factorization.

20401101202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32232450 (or 32232448 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20401101202020 its reverse (2020210110402), we get a palindrome (22421311312422).

The spelling of 20401101202020 in words is "twenty trillion, four hundred one billion, one hundred one million, two hundred two thousand, twenty".