1212213110212 has 48 divisors (see below), whose sum is σ = 2324658188160. Its totient is φ = 549720200448.

The previous prime is 1212213110131. The next prime is 1212213110237. The reversal of 1212213110212 is 2120113122121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212213110212.

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 15 ways as a sum of consecutive naturals, for example, 391239 + ... + 1605457.

It is an arithmetic number, because the mean of its divisors is an integer number (48430378920).

Almost surely, 2^{1212213110212} is an apocalyptic number.

It is an amenable number.

1212213110212 is a deficient number, since it is larger than the sum of its proper divisors (1112445077948).

1212213110212 is a wasteful number, since it uses less digits than its factorization.

1212213110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214572 (or 1214570 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1212213110212 its reverse (2120113122121), we get a palindrome (3332326232333).

The spelling of 1212213110212 in words is "one trillion, two hundred twelve billion, two hundred thirteen million, one hundred ten thousand, two hundred twelve".