102231221968 has 10 divisors (see below), whose sum is σ = 198072992594. Its totient is φ = 51115610976.

The previous prime is 102231221957. The next prime is 102231221969. The reversal of 102231221968 is 869122132201.

It can be written as a sum of positive squares in only one way, i.e., 72042854464 + 30188367504 = 268408^2 + 173748^2 .

It is a super-3 number, since 3×102231221968³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102231221969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194725671 + ... + 3194725702.

Almost surely, 2^102231221968 is an apocalyptic number.

It is an amenable number.

102231221968 is a deficient number, since it is larger than the sum of its proper divisors (95841770626).

102231221968 is an equidigital number, since it uses as much as digits as its factorization.

102231221968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389451381 (or 6389451375 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 102231221968 in words is "one hundred two billion, two hundred thirty-one million, two hundred twenty-one thousand, nine hundred sixty-eight".