4223011222121 has 2 divisors, whose sum is σ = 4223011222122. Its totient is φ = 4223011222120.

The previous prime is 4223011222099. The next prime is 4223011222189. The reversal of 4223011222121 is 1212221103224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3623555902096 + 599455320025 = 1903564^2 + 774245^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223011222121 - 2⁶ = 4223011222057 is a prime.

It is not a weakly prime, because it can be changed into another prime (4223016222121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111505611060 + 2111505611061.

It is an arithmetic number, because the mean of its divisors is an integer number (2111505611061).

Almost surely, 2^{4223011222121} is an apocalyptic number.

It is an amenable number.

4223011222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223011222121 is an equidigital number, since it uses as much as digits as its factorization.

4223011222121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 4223011222121 its reverse (1212221103224), we get a palindrome (5435232325345).

The spelling of 4223011222121 in words is "four trillion, two hundred twenty-three billion, eleven million, two hundred twenty-two thousand, one hundred twenty-one".