11021200110511 has 2 divisors, whose sum is σ = 11021200110512. Its totient is φ = 11021200110510.

The previous prime is 11021200110497. The next prime is 11021200110607. The reversal of 11021200110511 is 11501100212011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021200110511 is a prime.

It is a super-2 number, since 2×11021200110511² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021200111511) 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, 5510600055255 + 5510600055256.

It is an arithmetic number, because the mean of its divisors is an integer number (5510600055256).

Almost surely, 2^{11021200110511} is an apocalyptic number.

11021200110511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021200110511 is an equidigital number, since it uses as much as digits as its factorization.

11021200110511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 16.

Adding to 11021200110511 its reverse (11501100212011), we get a palindrome (22522300322522).

The spelling of 11021200110511 in words is "eleven trillion, twenty-one billion, two hundred million, one hundred ten thousand, five hundred eleven".