20111112102211 has 32 divisors (see below), whose sum is σ = 22718955143808. Its totient is φ = 17663364956160.

The previous prime is 20111112102209. The next prime is 20111112102227. The reversal of 20111112102211 is 11220121111102.

It is a cyclic number.

It is not a de Polignac number, because 20111112102211 - 2¹ = 20111112102209 is a prime.

It is a super-2 number, since 2×20111112102211² (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 (20111112102241) 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, 327293251 + ... + 327354691.

It is an arithmetic number, because the mean of its divisors is an integer number (709967348244).

Almost surely, 2^{20111112102211} is an apocalyptic number.

20111112102211 is a deficient number, since it is larger than the sum of its proper divisors (2607843041597).

20111112102211 is a wasteful number, since it uses less digits than its factorization.

20111112102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67231.

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

Adding to 20111112102211 its reverse (11220121111102), we get a palindrome (31331233213313).

The spelling of 20111112102211 in words is "twenty trillion, one hundred eleven billion, one hundred twelve million, one hundred two thousand, two hundred eleven".