20201021210112 has 80 divisors (see below), whose sum is σ = 53822352210000. Its totient is φ = 6732976914432.

The previous prime is 20201021210101. The next prime is 20201021210137. The reversal of 20201021210112 is 21101212010202.

It is a junction number, because it is equal to n+sod(n) for n = 20201021210091 and 20201021210100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14274264 + ... + 15625512.

It is an arithmetic number, because the mean of its divisors is an integer number (672779402625).

Almost surely, 2^{20201021210112} is an apocalyptic number.

It is an amenable number.

20201021210112 is an abundant number, since it is smaller than the sum of its proper divisors (33621330999888).

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

20201021210112 is an equidigital number, since it uses as much as digits as its factorization.

20201021210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361003 (or 1360987 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20201021210112 its reverse (21101212010202), we get a palindrome (41302233220314).

The spelling of 20201021210112 in words is "twenty trillion, two hundred one billion, twenty-one million, two hundred ten thousand, one hundred twelve".