1223401112281 has 2 divisors, whose sum is σ = 1223401112282. Its totient is φ = 1223401112280.

The previous prime is 1223401112273. The next prime is 1223401112293. The reversal of 1223401112281 is 1822111043221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1145499278400 + 77901833881 = 1070280^2 + 279109^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223401112281 - 2³ = 1223401112273 is a prime.

It is a super-2 number, since 2×1223401112281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1223401112881) 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, 611700556140 + 611700556141.

It is an arithmetic number, because the mean of its divisors is an integer number (611700556141).

Almost surely, 2^{1223401112281} is an apocalyptic number.

It is an amenable number.

1223401112281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223401112281 is an equidigital number, since it uses as much as digits as its factorization.

1223401112281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 28.

The spelling of 1223401112281 in words is "one trillion, two hundred twenty-three billion, four hundred one million, one hundred twelve thousand, two hundred eighty-one".