102011010212 has 6 divisors (see below), whose sum is σ = 178519267878. Its totient is φ = 51005505104.

The previous prime is 102011010151. The next prime is 102011010217. The reversal of 102011010212 is 212010110201.

It can be written as a sum of positive squares in only one way, i.e., 52800686656 + 49210323556 = 229784^2 + 221834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102011010193 and 102011010202.

It is not an unprimeable number, because it can be changed into a prime (102011010217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12751376273 + ... + 12751376280.

It is an arithmetic number, because the mean of its divisors is an integer number (29753211313).

Almost surely, 2^102011010212 is an apocalyptic number.

It is an amenable number.

102011010212 is a deficient number, since it is larger than the sum of its proper divisors (76508257666).

102011010212 is a wasteful number, since it uses less digits than its factorization.

102011010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25502752557 (or 25502752555 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102011010212 its reverse (212010110201), we get a palindrome (314021120413).

The spelling of 102011010212 in words is "one hundred two billion, eleven million, ten thousand, two hundred twelve".