12115101 has 16 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 7542528.

The previous prime is 12115091. The next prime is 12115123. The reversal of 12115101 is 10151121.

It is not a de Polignac number, because 12115101 - 2¹¹ = 12113053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115151) 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, 6235 + ... + 7943.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^12115101 is an apocalyptic number.

It is an amenable number.

12115101 is a deficient number, since it is larger than the sum of its proper divisors (5121699).

12115101 is a wasteful number, since it uses less digits than its factorization.

12115101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868.

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 12115101 is about 3480.6753655002. The cubic root of 12115101 is about 229.6725080779.

Adding to 12115101 its reverse (10151121), we get a palindrome (22266222).

The spelling of 12115101 in words is "twelve million, one hundred fifteen thousand, one hundred one".