21101011200223 has 2 divisors, whose sum is σ = 21101011200224. Its totient is φ = 21101011200222.

The previous prime is 21101011200193. The next prime is 21101011200251. The reversal of 21101011200223 is 32200211010112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21101011200223 - 2²⁵ = 21100977645791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21101011200197 and 21101011200206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21101011600223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550505600111 + 10550505600112.

It is an arithmetic number, because the mean of its divisors is an integer number (10550505600112).

Almost surely, 2^{21101011200223} is an apocalyptic number.

21101011200223 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101011200223 is an equidigital number, since it uses as much as digits as its factorization.

21101011200223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21101011200223 its reverse (32200211010112), we get a palindrome (53301222210335).

The spelling of 21101011200223 in words is "twenty-one trillion, one hundred one billion, eleven million, two hundred thousand, two hundred twenty-three".