123222021023281 has 2 divisors, whose sum is σ = 123222021023282. Its totient is φ = 123222021023280.

The previous prime is 123222021023201. The next prime is 123222021023303. The reversal of 123222021023281 is 182320120222321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95280225023281 + 27941796000000 = 9761159^2 + 5286000^2 .

It is an emirp because it is prime and its reverse (182320120222321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123222021023281 - 2¹¹ = 123222021021233 is a prime.

It is a super-2 number, since 2×123222021023281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123222021023201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61611010511640 + 61611010511641.

It is an arithmetic number, because the mean of its divisors is an integer number (61611010511641).

Almost surely, 2^{123222021023281} is an apocalyptic number.

It is an amenable number.

123222021023281 is a deficient number, since it is larger than the sum of its proper divisors (1).

123222021023281 is an equidigital number, since it uses as much as digits as its factorization.

123222021023281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 123222021023281 in words is "one hundred twenty-three trillion, two hundred twenty-two billion, twenty-one million, twenty-three thousand, two hundred eighty-one".