2212101212212 has 6 divisors (see below), whose sum is σ = 3871177121378. Its totient is φ = 1106050606104.

The previous prime is 2212101212207. The next prime is 2212101212311. The reversal of 2212101212212 is 2122121012122.

It can be written as a sum of positive squares in only one way, i.e., 1902402284176 + 309698928036 = 1379276^2 + 556506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2212101212212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276512651523 + ... + 276512651530.

Almost surely, 2^{2212101212212} is an apocalyptic number.

It is an amenable number.

2212101212212 is a deficient number, since it is larger than the sum of its proper divisors (1659075909166).

2212101212212 is a wasteful number, since it uses less digits than its factorization.

2212101212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553025303057 (or 553025303055 counting only the distinct ones).

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

Adding to 2212101212212 its reverse (2122121012122), we get a palindrome (4334222224334).

The spelling of 2212101212212 in words is "two trillion, two hundred twelve billion, one hundred one million, two hundred twelve thousand, two hundred twelve".