212222120202012 has 24 divisors (see below), whose sum is σ = 495422674007296. Its totient is φ = 70706745752688.

The previous prime is 212222120201951. The next prime is 212222120202101. The reversal of 212222120202012 is 210202021222212.

It is a self number, because there is not a number n which added to its sum of digits gives 212222120202012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4245096628 + ... + 4245146619.

Almost surely, 2^{212222120202012} is an apocalyptic number.

It is an amenable number.

212222120202012 is an abundant number, since it is smaller than the sum of its proper divisors (283200553805284).

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

212222120202012 is a wasteful number, since it uses less digits than its factorization.

212222120202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490245337 (or 8490245335 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 212222120202012 its reverse (210202021222212), we get a palindrome (422424141424224).

The spelling of 212222120202012 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred twenty million, two hundred two thousand, twelve".