2212210121212 has 96 divisors (see below), whose sum is σ = 5009868097920. Its totient is φ = 831129707520.

The previous prime is 2212210121167. The next prime is 2212210121239. The reversal of 2212210121212 is 2121210122122.

It is a self number, because there is not a number n which added to its sum of digits gives 2212210121212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1073863 + ... + 2361694.

It is an arithmetic number, because the mean of its divisors is an integer number (52186126020).

Almost surely, 2^{2212210121212} is an apocalyptic number.

It is an amenable number.

2212210121212 is an abundant number, since it is smaller than the sum of its proper divisors (2797657976708).

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

2212210121212 is a wasteful number, since it uses less digits than its factorization.

2212210121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435671 (or 3435669 counting only the distinct ones).

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

Adding to 2212210121212 its reverse (2121210122122), we get a palindrome (4333420243334).

The spelling of 2212210121212 in words is "two trillion, two hundred twelve billion, two hundred ten million, one hundred twenty-one thousand, two hundred twelve".