10211000110021 has 4 divisors (see below), whose sum is σ = 10213353421600. Its totient is φ = 10208646798444.

The previous prime is 10211000110009. The next prime is 10211000110033. The reversal of 10211000110021 is 12001100011201.

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 an interprime number because it is at equal distance from previous prime (10211000110009) and next prime (10211000110033).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10211000110021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211000116021) 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, 1176649281 + ... + 1176657958.

It is an arithmetic number, because the mean of its divisors is an integer number (2553338355400).

Almost surely, 2^{10211000110021} is an apocalyptic number.

It is an amenable number.

10211000110021 is a deficient number, since it is larger than the sum of its proper divisors (2353311579).

10211000110021 is an equidigital number, since it uses as much as digits as its factorization.

10211000110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353311578.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10211000110021 its reverse (12001100011201), we get a palindrome (22212100121222).

The spelling of 10211000110021 in words is "ten trillion, two hundred eleven billion, one hundred ten thousand, twenty-one".