102219375481 has 2 divisors, whose sum is σ = 102219375482. Its totient is φ = 102219375480.

The previous prime is 102219375469. The next prime is 102219375509. The reversal of 102219375481 is 184573912201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51150607225 + 51068768256 = 226165^2 + 225984^2 .

It is a cyclic number.

It is not a de Polignac number, because 102219375481 - 2⁹ = 102219374969 is a prime.

It is a super-3 number, since 3×102219375481³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (102219375781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51109687740 + 51109687741.

It is an arithmetic number, because the mean of its divisors is an integer number (51109687741).

Almost surely, 2^102219375481 is an apocalyptic number.

It is an amenable number.

102219375481 is a deficient number, since it is larger than the sum of its proper divisors (1).

102219375481 is an equidigital number, since it uses as much as digits as its factorization.

102219375481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 102219375481 in words is "one hundred two billion, two hundred nineteen million, three hundred seventy-five thousand, four hundred eighty-one".