10211210200021 has 4 divisors (see below), whose sum is σ = 10310348163232. Its totient is φ = 10112072236812.

The previous prime is 10211210200019. The next prime is 10211210200031. The reversal of 10211210200021 is 12000201211201.

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 10211210200021 - 2¹ = 10211210200019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211210199974 and 10211210200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211210200001) 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, 49568981451 + ... + 49568981656.

It is an arithmetic number, because the mean of its divisors is an integer number (2577587040808).

Almost surely, 2^{10211210200021} is an apocalyptic number.

It is an amenable number.

10211210200021 is a deficient number, since it is larger than the sum of its proper divisors (99137963211).

10211210200021 is an equidigital number, since it uses as much as digits as its factorization.

10211210200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99137963210.

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

Adding to 10211210200021 its reverse (12000201211201), we get a palindrome (22211411411222).

The spelling of 10211210200021 in words is "ten trillion, two hundred eleven billion, two hundred ten million, two hundred thousand, twenty-one".