12101669 has 2 divisors, whose sum is σ = 12101670. Its totient is φ = 12101668.

The previous prime is 12101659. The next prime is 12101693. The reversal of 12101669 is 96610121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11356900 + 744769 = 3370^2 + 863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101669 is a prime.

It is a super-2 number, since 2×12101669² = 292900785171122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12101659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050834 + 6050835.

It is an arithmetic number, because the mean of its divisors is an integer number (6050835).

Almost surely, 2^12101669 is an apocalyptic number.

It is an amenable number.

12101669 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101669 is an equidigital number, since it uses as much as digits as its factorization.

12101669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 12101669 is about 3478.7453197956. The cubic root of 12101669 is about 229.5875974657.

The spelling of 12101669 in words is "twelve million, one hundred one thousand, six hundred sixty-nine".