11012122122011 has 4 divisors (see below), whose sum is σ = 11016372268224. Its totient is φ = 11007871975800.

The previous prime is 11012122121911. The next prime is 11012122122013. The reversal of 11012122122011 is 11022122121011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11012122122011 - 2¹⁴ = 11012122105627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012122122013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125069220 + ... + 2125074401.

It is an arithmetic number, because the mean of its divisors is an integer number (2754093067056).

Almost surely, 2^{11012122122011} is an apocalyptic number.

11012122122011 is a deficient number, since it is larger than the sum of its proper divisors (4250146213).

11012122122011 is an equidigital number, since it uses as much as digits as its factorization.

11012122122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250146212.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11012122122011 its reverse (11022122121011), we get a palindrome (22034244243022).

It can be divided in two parts, 1101212 and 2122011, that added together give a palindrome (3223223).

The spelling of 11012122122011 in words is "eleven trillion, twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, eleven".