12210210212 has 6 divisors (see below), whose sum is σ = 21367867878. Its totient is φ = 6105105104.

The previous prime is 12210210151. The next prime is 12210210227. The reversal of 12210210212 is 21201201221.

It can be written as a sum of positive squares in only one way, i.e., 12129497956 + 80712256 = 110134^2 + 8984^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1526276273 + ... + 1526276280.

It is an arithmetic number, because the mean of its divisors is an integer number (3561311313).

Almost surely, 2^12210210212 is an apocalyptic number.

It is an amenable number.

12210210212 is a deficient number, since it is larger than the sum of its proper divisors (9157657666).

12210210212 is a wasteful number, since it uses less digits than its factorization.

12210210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052552557 (or 3052552555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12210210212 its reverse (21201201221), we get a palindrome (33411411433).

The spelling of 12210210212 in words is "twelve billion, two hundred ten million, two hundred ten thousand, two hundred twelve".