1233223422421 has 2 divisors, whose sum is σ = 1233223422422. Its totient is φ = 1233223422420.

The previous prime is 1233223422407. The next prime is 1233223422439. The reversal of 1233223422421 is 1242243223321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030196580196 + 203026842225 = 1014986^2 + 450585^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233223422421 - 2¹⁵ = 1233223389653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233223422491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616611711210 + 616611711211.

It is an arithmetic number, because the mean of its divisors is an integer number (616611711211).

Almost surely, 2^{1233223422421} is an apocalyptic number.

It is an amenable number.

1233223422421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233223422421 is an equidigital number, since it uses as much as digits as its factorization.

1233223422421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 31.

Adding to 1233223422421 its reverse (1242243223321), we get a palindrome (2475466645742).

The spelling of 1233223422421 in words is "one trillion, two hundred thirty-three billion, two hundred twenty-three million, four hundred twenty-two thousand, four hundred twenty-one".