102302212 has 6 divisors (see below), whose sum is σ = 179028878. Its totient is φ = 51151104.

The previous prime is 102302173. The next prime is 102302219. The reversal of 102302212 is 212203201.

It can be written as a sum of positive squares in only one way, i.e., 102292996 + 9216 = 10114^2 + 96^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102302192 and 102302201.

It is not an unprimeable number, because it can be changed into a prime (102302219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12787773 + ... + 12787780.

Almost surely, 2^102302212 is an apocalyptic number.

It is an amenable number.

102302212 is a deficient number, since it is larger than the sum of its proper divisors (76726666).

102302212 is a wasteful number, since it uses less digits than its factorization.

102302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25575557 (or 25575555 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102302212 is about 10114.4555958292. The cubic root of 102302212 is about 467.6938668050.

Adding to 102302212 its reverse (212203201), we get a palindrome (314505413).

The spelling of 102302212 in words is "one hundred two million, three hundred two thousand, two hundred twelve".