20112211120011 has 32 divisors (see below), whose sum is σ = 28409918208000. Its totient is φ = 12620533805568.

The previous prime is 20112211120007. The next prime is 20112211120021. The reversal of 20112211120011 is 11002111221102.

It is a happy number.

It is not a de Polignac number, because 20112211120011 - 2² = 20112211120007 is a prime.

It is a super-2 number, since 2×20112211120011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20112211120021) 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 in 31 ways as a sum of consecutive naturals, for example, 13998150 + ... + 15367908.

It is an arithmetic number, because the mean of its divisors is an integer number (887809944000).

Almost surely, 2^{20112211120011} is an apocalyptic number.

20112211120011 is a deficient number, since it is larger than the sum of its proper divisors (8297707087989).

20112211120011 is a wasteful number, since it uses less digits than its factorization.

20112211120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371443.

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

Adding to 20112211120011 its reverse (11002111221102), we get a palindrome (31114322341113).

The spelling of 20112211120011 in words is "twenty trillion, one hundred twelve billion, two hundred eleven million, one hundred twenty thousand, eleven".