102222012102121 has 2 divisors, whose sum is σ = 102222012102122. Its totient is φ = 102222012102120.

The previous prime is 102222012102061. The next prime is 102222012102143. The reversal of 102222012102121 is 121201210222201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83908439624025 + 18313572478096 = 9160155^2 + 4279436^2 .

It is an emirp because it is prime and its reverse (121201210222201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102222012102121 - 2¹¹ = 102222012100073 is a prime.

It is not a weakly prime, because it can be changed into another prime (102222012102181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111006051060 + 51111006051061.

It is an arithmetic number, because the mean of its divisors is an integer number (51111006051061).

Almost surely, 2^{102222012102121} is an apocalyptic number.

It is an amenable number.

102222012102121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102222012102121 is an equidigital number, since it uses as much as digits as its factorization.

102222012102121 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 19.

Adding to 102222012102121 its reverse (121201210222201), we get a palindrome (223423222324322).

The spelling of 102222012102121 in words is "one hundred two trillion, two hundred twenty-two billion, twelve million, one hundred two thousand, one hundred twenty-one".