20110120122211 has 24 divisors (see below), whose sum is σ = 24808010104080. Its totient is φ = 16198059128832.

The previous prime is 20110120122181. The next prime is 20110120122233. The reversal of 20110120122211 is 11222102101102.

It is not a de Polignac number, because 20110120122211 - 2⁷ = 20110120122083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110120122241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18237166 + ... + 19308403.

It is an arithmetic number, because the mean of its divisors is an integer number (1033667087670).

Almost surely, 2^{20110120122211} is an apocalyptic number.

20110120122211 is a deficient number, since it is larger than the sum of its proper divisors (4697889981869).

20110120122211 is a wasteful number, since it uses less digits than its factorization.

20110120122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37546243 (or 37546236 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20110120122211 its reverse (11222102101102), we get a palindrome (31332222223313).

The spelling of 20110120122211 in words is "twenty trillion, one hundred ten billion, one hundred twenty million, one hundred twenty-two thousand, two hundred eleven".