10122111 has 8 divisors (see below), whose sum is σ = 14995760. Its totient is φ = 6748056.

The previous prime is 10122043. The next prime is 10122113. The reversal of 10122111 is 11122101.

It is a happy number.

It is not a de Polignac number, because 10122111 - 2¹³ = 10113919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10122093 and 10122102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187420 + ... + 187473.

It is an arithmetic number, because the mean of its divisors is an integer number (1874470).

Almost surely, 2^10122111 is an apocalyptic number.

10122111 is a deficient number, since it is larger than the sum of its proper divisors (4873649).

10122111 is an equidigital number, since it uses as much as digits as its factorization.

10122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374902 (or 374896 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 10122111 is about 3181.5265203987. The cubic root of 10122111 is about 216.3168574949.

Adding to 10122111 its reverse (11122101), we get a palindrome (21244212).

The spelling of 10122111 in words is "ten million, one hundred twenty-two thousand, one hundred eleven".