102222024221 has 2 divisors, whose sum is σ = 102222024222. Its totient is φ = 102222024220.

The previous prime is 102222024193. The next prime is 102222024227. The reversal of 102222024221 is 122420222201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79983758596 + 22238265625 = 282814^2 + 149125^2 .

It is an emirp because it is prime and its reverse (122420222201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102222024221 - 2¹⁸ = 102221762077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102222024193 and 102222024202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102222024227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111012110 + 51111012111.

It is an arithmetic number, because the mean of its divisors is an integer number (51111012111).

Almost surely, 2^102222024221 is an apocalyptic number.

It is an amenable number.

102222024221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102222024221 is an equidigital number, since it uses as much as digits as its factorization.

102222024221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102222024221 its reverse (122420222201), we get a palindrome (224642246422).

The spelling of 102222024221 in words is "one hundred two billion, two hundred twenty-two million, twenty-four thousand, two hundred twenty-one".