20201001111020 has 12 divisors (see below), whose sum is σ = 42422102333184. Its totient is φ = 8080400444400.

The previous prime is 20201001110971. The next prime is 20201001111043. The reversal of 20201001111020 is 2011110010202.

It is a junction number, because it is equal to n+sod(n) for n = 20201001110992 and 20201001111010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505025027756 + ... + 505025027795.

It is an arithmetic number, because the mean of its divisors is an integer number (3535175194432).

Almost surely, 2^{20201001111020} is an apocalyptic number.

20201001111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201001111020 is an abundant number, since it is smaller than the sum of its proper divisors (22221101222164).

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

20201001111020 is a wasteful number, since it uses less digits than its factorization.

20201001111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010050055560 (or 1010050055558 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20201001111020 its reverse (2011110010202), we get a palindrome (22212111121222).

The spelling of 20201001111020 in words is "twenty trillion, two hundred one billion, one million, one hundred eleven thousand, twenty".