220012001012161 has 2 divisors, whose sum is σ = 220012001012162. Its totient is φ = 220012001012160.

The previous prime is 220012001012077. The next prime is 220012001012171. The reversal of 220012001012161 is 161210100210022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209041166561536 + 10970834450625 = 14458256^2 + 3312225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220012001012161 is a prime.

It is not a weakly prime, because it can be changed into another prime (220012001012171) 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, 110006000506080 + 110006000506081.

It is an arithmetic number, because the mean of its divisors is an integer number (110006000506081).

Almost surely, 2^{220012001012161} is an apocalyptic number.

It is an amenable number.

220012001012161 is a deficient number, since it is larger than the sum of its proper divisors (1).

220012001012161 is an equidigital number, since it uses as much as digits as its factorization.

220012001012161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 220012001012161 its reverse (161210100210022), we get a palindrome (381222101222183).

The spelling of 220012001012161 in words is "two hundred twenty trillion, twelve billion, one million, twelve thousand, one hundred sixty-one".