12101765 has 32 divisors (see below), whose sum is σ = 16934400. Its totient is φ = 8225280.

The previous prime is 12101743. The next prime is 12101767. The reversal of 12101765 is 56710121.

It is not a de Polignac number, because 12101765 - 2¹⁰ = 12100741 is a prime.

It is a super-2 number, since 2×12101765² = 292905432230450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12101765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50516 + ... + 50754.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 2^12101765 is an apocalyptic number.

It is an amenable number.

12101765 is a deficient number, since it is larger than the sum of its proper divisors (4832635).

12101765 is a wasteful number, since it uses less digits than its factorization.

12101765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 12101765 is about 3478.7591178465. The cubic root of 12101765 is about 229.5882045541.

Adding to 12101765 its reverse (56710121), we get a palindrome (68811886).

The spelling of 12101765 in words is "twelve million, one hundred one thousand, seven hundred sixty-five".