20112012122211 has 24 divisors (see below), whose sum is σ = 29136614710320. Its totient is φ = 13368353703936.

The previous prime is 20112012122207. The next prime is 20112012122297. The reversal of 20112012122211 is 11222121021102.

20112012122211 is a `hidden beast` number, since 20 + 11 + 201 + 212 + 221 + 1 = 666.

It is not a de Polignac number, because 20112012122211 - 2² = 20112012122207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112012172211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42088435 + ... + 42563603.

It is an arithmetic number, because the mean of its divisors is an integer number (1214025612930).

Almost surely, 2^{20112012122211} is an apocalyptic number.

20112012122211 is a deficient number, since it is larger than the sum of its proper divisors (9024602588109).

20112012122211 is a wasteful number, since it uses less digits than its factorization.

20112012122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489075 (or 489072 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20112012122211 its reverse (11222121021102), we get a palindrome (31334133143313).

The spelling of 20112012122211 in words is "twenty trillion, one hundred twelve billion, twelve million, one hundred twenty-two thousand, two hundred eleven".