111002022102221 has 2 divisors, whose sum is σ = 111002022102222. Its totient is φ = 111002022102220.

The previous prime is 111002022102173. The next prime is 111002022102233. The reversal of 111002022102221 is 122201220200111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56514520252996 + 54487501849225 = 7517614^2 + 7381565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111002022102221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111002022102221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111002022102271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55501011051110 + 55501011051111.

It is an arithmetic number, because the mean of its divisors is an integer number (55501011051111).

Almost surely, 2^{111002022102221} is an apocalyptic number.

It is an amenable number.

111002022102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

111002022102221 is an equidigital number, since it uses as much as digits as its factorization.

111002022102221 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 17.

Adding to 111002022102221 its reverse (122201220200111), we get a palindrome (233203242302332).

The spelling of 111002022102221 in words is "one hundred eleven trillion, two billion, twenty-two million, one hundred two thousand, two hundred twenty-one".