36012121 has 2 divisors, whose sum is σ = 36012122. Its totient is φ = 36012120.

The previous prime is 36012107. The next prime is 36012131. The reversal of 36012121 is 12121063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34386496 + 1625625 = 5864^2 + 1275^2 .

It is an emirp because it is prime and its reverse (12121063) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36012121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36012095 and 36012104.

It is not a weakly prime, because it can be changed into another prime (36012131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18006060 + 18006061.

It is an arithmetic number, because the mean of its divisors is an integer number (18006061).

Almost surely, 2^36012121 is an apocalyptic number.

It is an amenable number.

36012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

36012121 is an equidigital number, since it uses as much as digits as its factorization.

36012121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 36012121 is about 6001.0099983253. The cubic root of 36012121 is about 330.2297787499.

Adding to 36012121 its reverse (12121063), we get a palindrome (48133184).

The spelling of 36012121 in words is "thirty-six million, twelve thousand, one hundred twenty-one".