10120111112 has 16 divisors (see below), whose sum is σ = 18981892860. Its totient is φ = 5058273024.

The previous prime is 10120111109. The next prime is 10120111117. The reversal of 10120111112 is 21111102101.

It can be written as a sum of positive squares in 2 ways, for example, as 9977212996 + 142898116 = 99886^2 + 11954^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10120111093 and 10120111102.

It is not an unprimeable number, because it can be changed into a prime (10120111117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198533 + ... + 244244.

Almost surely, 2^10120111112 is an apocalyptic number.

It is an amenable number.

10120111112 is a deficient number, since it is larger than the sum of its proper divisors (8861781748).

10120111112 is a wasteful number, since it uses less digits than its factorization.

10120111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445640 (or 445636 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10120111112 its reverse (21111102101), we get a palindrome (31231213213).

The spelling of 10120111112 in words is "ten billion, one hundred twenty million, one hundred eleven thousand, one hundred twelve".