11211001110021 has 8 divisors (see below), whose sum is σ = 15295629421600. Its totient is φ = 7300186769232.

The previous prime is 11211001110011. The next prime is 11211001110047. The reversal of 11211001110021 is 12001110011211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11211001110021 - 2⁹ = 11211001109509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11211001109979 and 11211001110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211001110011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43453492546 + ... + 43453492803.

It is an arithmetic number, because the mean of its divisors is an integer number (1911953677700).

Almost surely, 2^{11211001110021} is an apocalyptic number.

It is an amenable number.

11211001110021 is a deficient number, since it is larger than the sum of its proper divisors (4084628311579).

11211001110021 is an equidigital number, since it uses as much as digits as its factorization.

11211001110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86906985395.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11211001110021 its reverse (12001110011211), we get a palindrome (23212111121232).

The spelling of 11211001110021 in words is "eleven trillion, two hundred eleven billion, one million, one hundred ten thousand, twenty-one".