102231221969 has 2 divisors, whose sum is σ = 102231221970. Its totient is φ = 102231221968.

The previous prime is 102231221957. The next prime is 102231222007. The reversal of 102231221969 is 969122132201.

It is a happy number.

It is an a-pointer prime, because the next prime (102231222007) can be obtained adding 102231221969 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53351760400 + 48879461569 = 230980^2 + 221087^2 .

It is an emirp because it is prime and its reverse (969122132201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102231221969 - 2¹² = 102231217873 is a prime.

It is a super-2 number, since 2×102231221969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102231271969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51115610984 + 51115610985.

It is an arithmetic number, because the mean of its divisors is an integer number (51115610985).

Almost surely, 2^102231221969 is an apocalyptic number.

It is an amenable number.

102231221969 is a deficient number, since it is larger than the sum of its proper divisors (1).

102231221969 is an equidigital number, since it uses as much as digits as its factorization.

102231221969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 102231221969 in words is "one hundred two billion, two hundred thirty-one million, two hundred twenty-one thousand, nine hundred sixty-nine".