12101025 has 24 divisors (see below), whose sum is σ = 21186144. Its totient is φ = 6073600.

The previous prime is 12101021. The next prime is 12101053. The reversal of 12101025 is 52010121.

12101025 = T₁₁₄ + T₁₁₅ + ... + T₄₁₉.

It is not a de Polignac number, because 12101025 - 2² = 12101021 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101025.

It is not an unprimeable number, because it can be changed into a prime (12101021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3471 + ... + 6020.

It is an arithmetic number, because the mean of its divisors is an integer number (882756).

Almost surely, 2^12101025 is an apocalyptic number.

12101025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12101025 is a deficient number, since it is larger than the sum of its proper divisors (9085119).

12101025 is a wasteful number, since it uses less digits than its factorization.

12101025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521 (or 9516 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 12101025 is about 3478.6527564562. The cubic root of 12101025 is about 229.5835248309.

Adding to 12101025 its reverse (52010121), we get a palindrome (64111146).

The spelling of 12101025 in words is "twelve million, one hundred one thousand, twenty-five".