20201010021211 has 4 divisors (see below), whose sum is σ = 20201088059992. Its totient is φ = 20200931982432.

The previous prime is 20201010021119. The next prime is 20201010021221. The reversal of 20201010021211 is 11212001010202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20201010021211 - 2⁷ = 20201010021083 is a prime.

It is a super-3 number, since 3×20201010021211³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201010021191 and 20201010021200.

It is not an unprimeable number, because it can be changed into a prime (20201010021221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38629806 + ... + 39149251.

It is an arithmetic number, because the mean of its divisors is an integer number (5050272014998).

Almost surely, 2^{20201010021211} is an apocalyptic number.

20201010021211 is a deficient number, since it is larger than the sum of its proper divisors (78038781).

20201010021211 is an equidigital number, since it uses as much as digits as its factorization.

20201010021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78038780.

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

Adding to 20201010021211 its reverse (11212001010202), we get a palindrome (31413011031413).

The spelling of 20201010021211 in words is "twenty trillion, two hundred one billion, ten million, twenty-one thousand, two hundred eleven".