111222112102201 has 2 divisors, whose sum is σ = 111222112102202. Its totient is φ = 111222112102200.

The previous prime is 111222112102183. The next prime is 111222112102237. The reversal of 111222112102201 is 102201211222111.

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., 109016590092201 + 2205522010000 = 10441101^2 + 1485100^2 .

It is a cyclic number.

It is not a de Polignac number, because 111222112102201 - 2²⁷ = 111221977884473 is a prime.

It is a super-2 number, since 2×111222112102201² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111222112102261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611056051100 + 55611056051101.

It is an arithmetic number, because the mean of its divisors is an integer number (55611056051101).

Almost surely, 2^{111222112102201} is an apocalyptic number.

It is an amenable number.

111222112102201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222112102201 is an equidigital number, since it uses as much as digits as its factorization.

111222112102201 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 111222112102201 its reverse (102201211222111), we get a palindrome (213423323324312).

The spelling of 111222112102201 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred twelve million, one hundred two thousand, two hundred one".