6612000121 has 2 divisors, whose sum is σ = 6612000122. Its totient is φ = 6612000120.

The previous prime is 6612000119. The next prime is 6612000149. The reversal of 6612000121 is 1210002166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5983796025 + 628204096 = 77355^2 + 25064^2 .

It is a cyclic number.

It is not a de Polignac number, because 6612000121 - 2¹ = 6612000119 is a prime.

It is a super-3 number, since 3×6612000121³ (a number of 30 digits) contains 333 as substring.

Together with 6612000119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6612000151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306000060 + 3306000061.

It is an arithmetic number, because the mean of its divisors is an integer number (3306000061).

Almost surely, 2^6612000121 is an apocalyptic number.

It is an amenable number.

6612000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6612000121 is an equidigital number, since it uses as much as digits as its factorization.

6612000121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 6612000121 is about 81314.2061450519. The cubic root of 6612000121 is about 1876.9136133419.

Adding to 6612000121 its reverse (1210002166), we get a palindrome (7822002287).

The spelling of 6612000121 in words is "six billion, six hundred twelve million, one hundred twenty-one", and thus it is an aban number.