10112122111 has 12 divisors (see below), whose sum is σ = 12667933992. Its totient is φ = 8000799408.

The previous prime is 10112122103. The next prime is 10112122123. The reversal of 10112122111 is 11122121101.

It is a happy number.

It is not a de Polignac number, because 10112122111 - 2³ = 10112122103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 10112122091 and 10112122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7936665 + ... + 7937938.

It is an arithmetic number, because the mean of its divisors is an integer number (1055661166).

Almost surely, 2^10112122111 is an apocalyptic number.

10112122111 is a deficient number, since it is larger than the sum of its proper divisors (2555811881).

10112122111 is a wasteful number, since it uses less digits than its factorization.

10112122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15874630 (or 15874623 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10112122111 its reverse (11122121101), we get a palindrome (21234243212).

The spelling of 10112122111 in words is "ten billion, one hundred twelve million, one hundred twenty-two thousand, one hundred eleven".