221030013112361 has 2 divisors, whose sum is σ = 221030013112362. Its totient is φ = 221030013112360.

The previous prime is 221030013112357. The next prime is 221030013112409. The reversal of 221030013112361 is 163211310030122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202873304089600 + 18156709022761 = 14243360^2 + 4261069^2 .

It is a cyclic number.

It is not a de Polignac number, because 221030013112361 - 2² = 221030013112357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221030013112361.

It is not a weakly prime, because it can be changed into another prime (221030013112301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110515006556180 + 110515006556181.

It is an arithmetic number, because the mean of its divisors is an integer number (110515006556181).

Almost surely, 2^{221030013112361} is an apocalyptic number.

It is an amenable number.

221030013112361 is a deficient number, since it is larger than the sum of its proper divisors (1).

221030013112361 is an equidigital number, since it uses as much as digits as its factorization.

221030013112361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 221030013112361 its reverse (163211310030122), we get a palindrome (384241323142483).

The spelling of 221030013112361 in words is "two hundred twenty-one trillion, thirty billion, thirteen million, one hundred twelve thousand, three hundred sixty-one".