20111112122110 has 32 divisors (see below), whose sum is σ = 36223496760672. Its totient is φ = 8039225201280.

The previous prime is 20111112122051. The next prime is 20111112122111. The reversal of 20111112122110 is 1122121111102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111112122111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115586580 + ... + 115760440.

It is an arithmetic number, because the mean of its divisors is an integer number (1131984273771).

Almost surely, 2^{20111112122110} is an apocalyptic number.

20111112122110 is a deficient number, since it is larger than the sum of its proper divisors (16112384638562).

20111112122110 is a wasteful number, since it uses less digits than its factorization.

20111112122110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181308.

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

Adding to 20111112122110 its reverse (1122121111102), we get a palindrome (21233233233212).

The spelling of 20111112122110 in words is "twenty trillion, one hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, one hundred ten".