10211002000021 has 4 divisors (see below), whose sum is σ = 10540389161344. Its totient is φ = 9881614838700.

The previous prime is 10211001999937. The next prime is 10211002000033. The reversal of 10211002000021 is 12000020011201.

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 10211002000021 - 2²¹ = 10210999902869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211001999971 and 10211002000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211002000061) 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, 164693580615 + ... + 164693580676.

It is an arithmetic number, because the mean of its divisors is an integer number (2635097290336).

Almost surely, 2^{10211002000021} is an apocalyptic number.

It is an amenable number.

10211002000021 is a deficient number, since it is larger than the sum of its proper divisors (329387161323).

10211002000021 is an equidigital number, since it uses as much as digits as its factorization.

10211002000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329387161322.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10211002000021 its reverse (12000020011201), we get a palindrome (22211022011222).

The spelling of 10211002000021 in words is "ten trillion, two hundred eleven billion, two million, twenty-one", and thus it is an aban number.