11212021120011 has 32 divisors (see below), whose sum is σ = 15132463746048. Its totient is φ = 7383691960320.

The previous prime is 11212021120007. The next prime is 11212021120051. The reversal of 11212021120011 is 11002112021211.

It is a happy number.

It is not a de Polignac number, because 11212021120011 - 2² = 11212021120007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11212021120051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150151161 + ... + 150225813.

It is an arithmetic number, because the mean of its divisors is an integer number (472889492064).

Almost surely, 2^{11212021120011} is an apocalyptic number.

11212021120011 is a deficient number, since it is larger than the sum of its proper divisors (3920442626037).

11212021120011 is a wasteful number, since it uses less digits than its factorization.

11212021120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76531.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11212021120011 its reverse (11002112021211), we get a palindrome (22214133141222).

The spelling of 11212021120011 in words is "eleven trillion, two hundred twelve billion, twenty-one million, one hundred twenty thousand, eleven".