11022021100021 has 2 divisors, whose sum is σ = 11022021100022. Its totient is φ = 11022021100020.

The previous prime is 11022021100009. The next prime is 11022021100039. The reversal of 11022021100021 is 12000112022011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5885044179921 + 5136976920100 = 2425911^2 + 2266490^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022021100021 - 2⁵ = 11022021099989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11022021099974 and 11022021100010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11022021100121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511010550010 + 5511010550011.

It is an arithmetic number, because the mean of its divisors is an integer number (5511010550011).

Almost surely, 2^{11022021100021} is an apocalyptic number.

It is an amenable number.

11022021100021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11022021100021 is an equidigital number, since it uses as much as digits as its factorization.

11022021100021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11022021100021 its reverse (12000112022011), we get a palindrome (23022133122032).

The spelling of 11022021100021 in words is "eleven trillion, twenty-two billion, twenty-one million, one hundred thousand, twenty-one".