11212122120011 has 8 divisors (see below), whose sum is σ = 11487309996624. Its totient is φ = 10937016218880.

The previous prime is 11212122119987. The next prime is 11212122120071. The reversal of 11212122120011 is 11002122121211.

11212122120011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11212122120011 is a prime.

It is a super-2 number, since 2×11212122120011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212122120071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20216921 + ... + 20764106.

It is an arithmetic number, because the mean of its divisors is an integer number (1435913749578).

Almost surely, 2^{11212122120011} is an apocalyptic number.

11212122120011 is a deficient number, since it is larger than the sum of its proper divisors (275187876613).

11212122120011 is an equidigital number, since it uses as much as digits as its factorization.

11212122120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40987741.

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

Adding to 11212122120011 its reverse (11002122121211), we get a palindrome (22214244241222).

The spelling of 11212122120011 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty thousand, eleven".