220211221111201 has 2 divisors, whose sum is σ = 220211221111202. Its totient is φ = 220211221111200.

The previous prime is 220211221111153. The next prime is 220211221111283. The reversal of 220211221111201 is 102111122112022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113423778003600 + 106787443107601 = 10650060^2 + 10333801^2 .

It is a cyclic number.

It is not a de Polignac number, because 220211221111201 - 2¹¹ = 220211221109153 is a prime.

It is not a weakly prime, because it can be changed into another prime (220211221111601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105610555600 + 110105610555601.

It is an arithmetic number, because the mean of its divisors is an integer number (110105610555601).

Almost surely, 2^{220211221111201} is an apocalyptic number.

It is an amenable number.

220211221111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211221111201 is an equidigital number, since it uses as much as digits as its factorization.

220211221111201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220211221111201 its reverse (102111122112022), we get a palindrome (322322343223223).

The spelling of 220211221111201 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred twenty-one million, one hundred eleven thousand, two hundred one".