1223034121 has 2 divisors, whose sum is σ = 1223034122. Its totient is φ = 1223034120.

The previous prime is 1223034119. The next prime is 1223034157. The reversal of 1223034121 is 1214303221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 715027600 + 508006521 = 26740^2 + 22539^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223034121 - 2¹ = 1223034119 is a prime.

It is a super-2 number, since 2×1223034121² = 2991624922260485282, which contains 22 as substring.

Together with 1223034119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1223034101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611517060 + 611517061.

It is an arithmetic number, because the mean of its divisors is an integer number (611517061).

Almost surely, 2^1223034121 is an apocalyptic number.

It is an amenable number.

1223034121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223034121 is an equidigital number, since it uses as much as digits as its factorization.

1223034121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1223034121 is about 34971.9047379464. The cubic root of 1223034121 is about 1069.4148024328.

Adding to 1223034121 its reverse (1214303221), we get a palindrome (2437337342).

The spelling of 1223034121 in words is "one billion, two hundred twenty-three million, thirty-four thousand, one hundred twenty-one".