20011011022020 has 96 divisors (see below), whose sum is σ = 56202934032000. Its totient is φ = 5319884657664.

The previous prime is 20011011021977. The next prime is 20011011022031. The reversal of 20011011022020 is 2022011011002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20011011021987 and 20011011022005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113359986 + ... + 113536374.

It is an arithmetic number, because the mean of its divisors is an integer number (585447229500).

Almost surely, 2^{20011011022020} is an apocalyptic number.

20011011022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011011022020 is an abundant number, since it is smaller than the sum of its proper divisors (36191923009980).

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

20011011022020 is a wasteful number, since it uses less digits than its factorization.

20011011022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182197 (or 182195 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20011011022020 its reverse (2022011011002), we get a palindrome (22033022033022).

The spelling of 20011011022020 in words is "twenty trillion, eleven billion, eleven million, twenty-two thousand, twenty".