20201112201001 has 4 divisors (see below), whose sum is σ = 20234392452352. Its totient is φ = 20167831949652.

The previous prime is 20201112200999. The next prime is 20201112201091. The reversal of 20201112201001 is 10010221110202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20201112201001 - 2¹ = 20201112200999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201112201091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16640124765 + ... + 16640125978.

It is an arithmetic number, because the mean of its divisors is an integer number (5058598113088).

Almost surely, 2^{20201112201001} is an apocalyptic number.

It is an amenable number.

20201112201001 is a deficient number, since it is larger than the sum of its proper divisors (33280251351).

20201112201001 is an equidigital number, since it uses as much as digits as its factorization.

20201112201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33280251350.

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

Adding to 20201112201001 its reverse (10010221110202), we get a palindrome (30211333311203).

The spelling of 20201112201001 in words is "twenty trillion, two hundred one billion, one hundred twelve million, two hundred one thousand, one".