102102122210212 has 24 divisors (see below), whose sum is σ = 189237501815040. Its totient is φ = 48035797100160.

The previous prime is 102102122210197. The next prime is 102102122210213. The reversal of 102102122210212 is 212012221201201.

It is a self number, because there is not a number n which added to its sum of digits gives 102102122210212.

It is not an unprimeable number, because it can be changed into a prime (102102122210213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191300464 + ... + 191833447.

It is an arithmetic number, because the mean of its divisors is an integer number (7884895908960).

Almost surely, 2^{102102122210212} is an apocalyptic number.

It is an amenable number.

102102122210212 is a deficient number, since it is larger than the sum of its proper divisors (87135379604828).

102102122210212 is a wasteful number, since it uses less digits than its factorization.

102102122210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383137851 (or 383137849 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102102122210212 its reverse (212012221201201), we get a palindrome (314114343411413).

The spelling of 102102122210212 in words is "one hundred two trillion, one hundred two billion, one hundred twenty-two million, two hundred ten thousand, two hundred twelve".