102221121202111 has 2 divisors, whose sum is σ = 102221121202112. Its totient is φ = 102221121202110.

The previous prime is 102221121202097. The next prime is 102221121202133. The reversal of 102221121202111 is 111202121122201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102221121202111 - 2²⁹ = 102220584331199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102221121202511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110560601055 + 51110560601056.

It is an arithmetic number, because the mean of its divisors is an integer number (51110560601056).

Almost surely, 2^{102221121202111} is an apocalyptic number.

102221121202111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221121202111 is an equidigital number, since it uses as much as digits as its factorization.

102221121202111 is an odious number, because the sum of its binary digits is odd.

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

Adding to 102221121202111 its reverse (111202121122201), we get a palindrome (213423242324312).

The spelling of 102221121202111 in words is "one hundred two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, one hundred eleven".