12102061 has 4 divisors (see below), whose sum is σ = 12123900. Its totient is φ = 12080224.

The previous prime is 12102043. The next prime is 12102067. The reversal of 12102061 is 16020121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4368100 + 7733961 = 2090^2 + 2781^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102061 - 2⁵ = 12102029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10066 + ... + 11203.

It is an arithmetic number, because the mean of its divisors is an integer number (3030975).

Almost surely, 2^12102061 is an apocalyptic number.

It is an amenable number.

12102061 is a deficient number, since it is larger than the sum of its proper divisors (21839).

12102061 is an equidigital number, since it uses as much as digits as its factorization.

12102061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21838.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 12102061 is about 3478.8016614921. The cubic root of 12102061 is about 229.5900763900.

Adding to 12102061 its reverse (16020121), we get a palindrome (28122182).

The spelling of 12102061 in words is "twelve million, one hundred two thousand, sixty-one".