12121061 has 2 divisors, whose sum is σ = 12121062. Its totient is φ = 12121060.

The previous prime is 12121009. The next prime is 12121063. The reversal of 12121061 is 16012121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10144225 + 1976836 = 3185^2 + 1406^2 .

It is an emirp because it is prime and its reverse (16012121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12121061 - 2²² = 7926757 is a prime.

Together with 12121063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060530 + 6060531.

It is an arithmetic number, because the mean of its divisors is an integer number (6060531).

Almost surely, 2^12121061 is an apocalyptic number.

It is an amenable number.

12121061 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121061 is an equidigital number, since it uses as much as digits as its factorization.

12121061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 12121061 is about 3481.5314159146. The cubic root of 12121061 is about 229.7101642158.

Adding to 12121061 its reverse (16012121), we get a palindrome (28133182).

The spelling of 12121061 in words is "twelve million, one hundred twenty-one thousand, sixty-one".