220110111161201 has 2 divisors, whose sum is σ = 220110111161202. Its totient is φ = 220110111161200.

The previous prime is 220110111161063. The next prime is 220110111161261. The reversal of 220110111161201 is 102161111011022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114397249792225 + 105712861368976 = 10695665^2 + 10281676^2 .

It is a cyclic number.

It is not a de Polignac number, because 220110111161201 - 2⁴² = 215712064650097 is a prime.

It is a super-2 number, since 2×220110111161201² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220110111161261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055055580600 + 110055055580601.

It is an arithmetic number, because the mean of its divisors is an integer number (110055055580601).

Almost surely, 2^{220110111161201} is an apocalyptic number.

It is an amenable number.

220110111161201 is a deficient number, since it is larger than the sum of its proper divisors (1).

220110111161201 is an equidigital number, since it uses as much as digits as its factorization.

220110111161201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 20.

Adding to 220110111161201 its reverse (102161111011022), we get a palindrome (322271222172223).

The spelling of 220110111161201 in words is "two hundred twenty trillion, one hundred ten billion, one hundred eleven million, one hundred sixty-one thousand, two hundred one".