12102125 has 16 divisors (see below), whose sum is σ = 17262336. Its totient is φ = 8298000.

The previous prime is 12102091. The next prime is 12102127. The reversal of 12102125 is 52120121.

It is a de Polignac number, because none of the positive numbers 2^k-12102125 is a prime.

It is a super-2 number, since 2×12102125² = 292922859031250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102127) 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, 6041 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (1078896).

Almost surely, 2^12102125 is an apocalyptic number.

It is an amenable number.

12102125 is a deficient number, since it is larger than the sum of its proper divisors (5160211).

12102125 is an equidigital number, since it uses as much as digits as its factorization.

12102125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13853 (or 13843 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12102125 is about 3478.8108600497. The cubic root of 12102125 is about 229.5904811073.

Adding to 12102125 its reverse (52120121), we get a palindrome (64222246).

The spelling of 12102125 in words is "twelve million, one hundred two thousand, one hundred twenty-five".