11210010100021 has 2 divisors, whose sum is σ = 11210010100022. Its totient is φ = 11210010100020.

The previous prime is 11210010099949. The next prime is 11210010100057. The reversal of 11210010100021 is 12000101001211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6441246037521 + 4768764062500 = 2537961^2 + 2183750^2 .

It is a cyclic number.

It is not a de Polignac number, because 11210010100021 - 2⁴¹ = 9010986844469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11210010099980 and 11210010100007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11210010100921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605005050010 + 5605005050011.

It is an arithmetic number, because the mean of its divisors is an integer number (5605005050011).

Almost surely, 2^{11210010100021} is an apocalyptic number.

It is an amenable number.

11210010100021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210010100021 is an equidigital number, since it uses as much as digits as its factorization.

11210010100021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11210010100021 its reverse (12000101001211), we get a palindrome (23210111101232).

The spelling of 11210010100021 in words is "eleven trillion, two hundred ten billion, ten million, one hundred thousand, twenty-one".