21100220010011 has 2 divisors, whose sum is σ = 21100220010012. Its totient is φ = 21100220010010.

The previous prime is 21100220010007. The next prime is 21100220010043. The reversal of 21100220010011 is 11001002200112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21100220010011 - 2² = 21100220010007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21100220009974 and 21100220010001.

It is not a weakly prime, because it can be changed into another prime (21100220010091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550110005005 + 10550110005006.

It is an arithmetic number, because the mean of its divisors is an integer number (10550110005006).

Almost surely, 2^{21100220010011} is an apocalyptic number.

21100220010011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21100220010011 is an equidigital number, since it uses as much as digits as its factorization.

21100220010011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21100220010011 its reverse (11001002200112), we get a palindrome (32101222210123).

The spelling of 21100220010011 in words is "twenty-one trillion, one hundred billion, two hundred twenty million, ten thousand, eleven".