1223300221081 has 2 divisors, whose sum is σ = 1223300221082. Its totient is φ = 1223300221080.

The previous prime is 1223300221001. The next prime is 1223300221183. The reversal of 1223300221081 is 1801220033221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1063200205456 + 160100015625 = 1031116^2 + 400125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223300221081 - 2¹¹ = 1223300219033 is a prime.

It is a super-2 number, since 2×1223300221081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1223300221001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611650110540 + 611650110541.

It is an arithmetic number, because the mean of its divisors is an integer number (611650110541).

Almost surely, 2^{1223300221081} is an apocalyptic number.

It is an amenable number.

1223300221081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223300221081 is an equidigital number, since it uses as much as digits as its factorization.

1223300221081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 1223300221081 in words is "one trillion, two hundred twenty-three billion, three hundred million, two hundred twenty-one thousand, eighty-one".