123022121 has 2 divisors, whose sum is σ = 123022122. Its totient is φ = 123022120.

The previous prime is 123022111. The next prime is 123022127. The reversal of 123022121 is 121220321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92064025 + 30958096 = 9595^2 + 5564^2 .

It is an emirp because it is prime and its reverse (121220321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123022121 - 2⁶ = 123022057 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 123022096 and 123022105.

It is not a weakly prime, because it can be changed into another prime (123022127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61511060 + 61511061.

It is an arithmetic number, because the mean of its divisors is an integer number (61511061).

Almost surely, 2^123022121 is an apocalyptic number.

It is an amenable number.

123022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

123022121 is an equidigital number, since it uses as much as digits as its factorization.

123022121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 123022121 is about 11091.5337532733. The cubic root of 123022121 is about 497.3487950715.

Adding to 123022121 its reverse (121220321), we get a palindrome (244242442).

The spelling of 123022121 in words is "one hundred twenty-three million, twenty-two thousand, one hundred twenty-one".