102222320231081 has 2 divisors, whose sum is σ = 102222320231082. Its totient is φ = 102222320231080.

The previous prime is 102222320231051. The next prime is 102222320231167. The reversal of 102222320231081 is 180132023222201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95640576160000 + 6581744071081 = 9779600^2 + 2565491^2 .

It is a cyclic number.

It is not a de Polignac number, because 102222320231081 - 2¹⁰ = 102222320230057 is a prime.

It is a super-2 number, since 2×102222320231081² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (102222320231051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111160115540 + 51111160115541.

It is an arithmetic number, because the mean of its divisors is an integer number (51111160115541).

Almost surely, 2^{102222320231081} is an apocalyptic number.

It is an amenable number.

102222320231081 is a deficient number, since it is larger than the sum of its proper divisors (1).

102222320231081 is an equidigital number, since it uses as much as digits as its factorization.

102222320231081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 102222320231081 its reverse (180132023222201), we get a palindrome (282354343453282).

The spelling of 102222320231081 in words is "one hundred two trillion, two hundred twenty-two billion, three hundred twenty million, two hundred thirty-one thousand, eighty-one".