11040104221021 has 2 divisors, whose sum is σ = 11040104221022. Its totient is φ = 11040104221020.

The previous prime is 11040104221007. The next prime is 11040104221123. The reversal of 11040104221021 is 12012240104011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6931577918521 + 4108526302500 = 2632789^2 + 2026950^2 .

It is a cyclic number.

It is not a de Polignac number, because 11040104221021 - 2⁵ = 11040104220989 is a prime.

It is a super-2 number, since 2×11040104221021² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11040104221021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11340104221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5520052110510 + 5520052110511.

It is an arithmetic number, because the mean of its divisors is an integer number (5520052110511).

Almost surely, 2^{11040104221021} is an apocalyptic number.

It is an amenable number.

11040104221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11040104221021 is an equidigital number, since it uses as much as digits as its factorization.

11040104221021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11040104221021 its reverse (12012240104011), we get a palindrome (23052344325032).

The spelling of 11040104221021 in words is "eleven trillion, forty billion, one hundred four million, two hundred twenty-one thousand, twenty-one".