10211110020021 has 16 divisors (see below), whose sum is σ = 14373908868800. Its totient is φ = 6429985244928.

The previous prime is 10211110020011. The next prime is 10211110020053. The reversal of 10211110020021 is 12002001111201.

It is not a de Polignac number, because 10211110020021 - 2¹³ = 10211110011829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211110019979 and 10211110020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211110020011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265770526 + ... + 265808943.

It is an arithmetic number, because the mean of its divisors is an integer number (898369304300).

Almost surely, 2^{10211110020021} is an apocalyptic number.

It is an amenable number.

10211110020021 is a deficient number, since it is larger than the sum of its proper divisors (4162798848779).

10211110020021 is a wasteful number, since it uses less digits than its factorization.

10211110020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531579828.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10211110020021 its reverse (12002001111201), we get a palindrome (22213111131222).

The spelling of 10211110020021 in words is "ten trillion, two hundred eleven billion, one hundred ten million, twenty thousand, twenty-one".