141222121 has 2 divisors, whose sum is σ = 141222122. Its totient is φ = 141222120.

The previous prime is 141222119. The next prime is 141222181. The reversal of 141222121 is 121222141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136539225 + 4682896 = 11685^2 + 2164^2 .

It is an emirp because it is prime and its reverse (121222141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141222121 - 2¹ = 141222119 is a prime.

Together with 141222119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 141222095 and 141222104.

It is not a weakly prime, because it can be changed into another prime (141222181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70611060 + 70611061.

It is an arithmetic number, because the mean of its divisors is an integer number (70611061).

Almost surely, 2^141222121 is an apocalyptic number.

It is an amenable number.

141222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

141222121 is an equidigital number, since it uses as much as digits as its factorization.

141222121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64, while the sum is 16.

The square root of 141222121 is about 11883.6913877801. The cubic root of 141222121 is about 520.7559530112.

Adding to 141222121 its reverse (121222141), we get a palindrome (262444262).

The spelling of 141222121 in words is "one hundred forty-one million, two hundred twenty-two thousand, one hundred twenty-one".