221102102005201 has 2 divisors, whose sum is σ = 221102102005202. Its totient is φ = 221102102005200.

The previous prime is 221102102005189. The next prime is 221102102005207. The reversal of 221102102005201 is 102500201201122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120608694875601 + 100493407129600 = 10982199^2 + 10024640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221102102005201 is a prime.

It is a super-2 number, since 2×221102102005201² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221102102005207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110551051002600 + 110551051002601.

It is an arithmetic number, because the mean of its divisors is an integer number (110551051002601).

Almost surely, 2^{221102102005201} is an apocalyptic number.

It is an amenable number.

221102102005201 is a deficient number, since it is larger than the sum of its proper divisors (1).

221102102005201 is an equidigital number, since it uses as much as digits as its factorization.

221102102005201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 221102102005201 its reverse (102500201201122), we get a palindrome (323602303206323).

The spelling of 221102102005201 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred two million, five thousand, two hundred one".