102320121212 has 12 divisors (see below), whose sum is σ = 179083173360. Its totient is φ = 51153500256.

The previous prime is 102320121209. The next prime is 102320121221. The reversal of 102320121212 is 212121023201.

102320121212 is a modest number, since divided by 121212 gives 102320 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1604912 + ... + 1667447.

It is an arithmetic number, because the mean of its divisors is an integer number (14923597780).

Almost surely, 2^102320121212 is an apocalyptic number.

It is an amenable number.

102320121212 is a deficient number, since it is larger than the sum of its proper divisors (76763052148).

102320121212 is a wasteful number, since it uses less digits than its factorization.

102320121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280180 (or 3280178 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102320121212 its reverse (212121023201), we get a palindrome (314441144413).

The spelling of 102320121212 in words is "one hundred two billion, three hundred twenty million, one hundred twenty-one thousand, two hundred twelve".