220211222201 has 2 divisors, whose sum is σ = 220211222202. Its totient is φ = 220211222200.

The previous prime is 220211222173. The next prime is 220211222317. The reversal of 220211222201 is 102222112022.

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., 153221359225 + 66989862976 = 391435^2 + 258824^2 .

It is a cyclic number.

It is not a de Polignac number, because 220211222201 - 2¹⁴ = 220211205817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220211222201.

It is not a weakly prime, because it can be changed into another prime (220211222801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105611100 + 110105611101.

It is an arithmetic number, because the mean of its divisors is an integer number (110105611101).

Almost surely, 2^220211222201 is an apocalyptic number.

It is an amenable number.

220211222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211222201 is an equidigital number, since it uses as much as digits as its factorization.

220211222201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220211222201 its reverse (102222112022), we get a palindrome (322433334223).

The spelling of 220211222201 in words is "two hundred twenty billion, two hundred eleven million, two hundred twenty-two thousand, two hundred one".