102210211212 has 12 divisors (see below), whose sum is σ = 238490492856. Its totient is φ = 34070070400.

The previous prime is 102210211163. The next prime is 102210211237. The reversal of 102210211212 is 212112012201.

102210211212 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 102210211191 and 102210211200.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4258758789 + ... + 4258758812.

It is an arithmetic number, because the mean of its divisors is an integer number (19874207738).

Almost surely, 2^102210211212 is an apocalyptic number.

102210211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102210211212 is an abundant number, since it is smaller than the sum of its proper divisors (136280281644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102210211212 is a wasteful number, since it uses less digits than its factorization.

102210211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8517517608 (or 8517517606 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102210211212 its reverse (212112012201), we get a palindrome (314322223413).

The spelling of 102210211212 in words is "one hundred two billion, two hundred ten million, two hundred eleven thousand, two hundred twelve".