102220001212081 has 2 divisors, whose sum is σ = 102220001212082. Its totient is φ = 102220001212080.

The previous prime is 102220001212079. The next prime is 102220001212157. The reversal of 102220001212081 is 180212100022201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62524444417600 + 39695556794481 = 7907240^2 + 6300441^2 .

It is a cyclic number.

It is not a de Polignac number, because 102220001212081 - 2¹ = 102220001212079 is a prime.

It is a super-2 number, since 2×102220001212081² (a number of 29 digits) contains 22 as substring.

Together with 102220001212079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (102220001213081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110000606040 + 51110000606041.

It is an arithmetic number, because the mean of its divisors is an integer number (51110000606041).

Almost surely, 2^{102220001212081} is an apocalyptic number.

It is an amenable number.

102220001212081 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220001212081 is an equidigital number, since it uses as much as digits as its factorization.

102220001212081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 102220001212081 its reverse (180212100022201), we get a palindrome (282432101234282).

The spelling of 102220001212081 in words is "one hundred two trillion, two hundred twenty billion, one million, two hundred twelve thousand, eighty-one".