20201020111012 has 12 divisors (see below), whose sum is σ = 38071153286236. Its totient is φ = 9323547743520.

The previous prime is 20201020111001. The next prime is 20201020111031. The reversal of 20201020111012 is 21011102010202.

It can be written as a sum of positive squares in 2 ways, for example, as 10528882790976 + 9672137320036 = 3244824^2 + 3110006^2 .

It is a super-2 number, since 2×20201020111012² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20201020110983 and 20201020111001.

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, 194240577939 + ... + 194240578042.

Almost surely, 2^{20201020111012} is an apocalyptic number.

It is an amenable number.

20201020111012 is a deficient number, since it is larger than the sum of its proper divisors (17870133175224).

20201020111012 is a wasteful number, since it uses less digits than its factorization.

20201020111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388481155998 (or 388481155996 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20201020111012 its reverse (21011102010202), we get a palindrome (41212122121214).

The spelling of 20201020111012 in words is "twenty trillion, two hundred one billion, twenty million, one hundred eleven thousand, twelve".