2122202121212 has 24 divisors (see below), whose sum is σ = 3876168299136. Its totient is φ = 1014745528368.

The previous prime is 2122202121173. The next prime is 2122202121257. The reversal of 2122202121212 is 2121212022212.

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 7 ways as a sum of consecutive naturals, for example, 2082218 + ... + 2929169.

It is an arithmetic number, because the mean of its divisors is an integer number (161507012464).

Almost surely, 2^{2122202121212} is an apocalyptic number.

It is an amenable number.

2122202121212 is a deficient number, since it is larger than the sum of its proper divisors (1753966177924).

2122202121212 is a wasteful number, since it uses less digits than its factorization.

2122202121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016017 (or 5016015 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2122202121212 its reverse (2121212022212), we get a palindrome (4243414143424).

The spelling of 2122202121212 in words is "two trillion, one hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, two hundred twelve".