2122122121212 has 24 divisors (see below), whose sum is σ = 5019448672336. Its totient is φ = 697683984768.

The previous prime is 2122122121181. The next prime is 2122122121271. The reversal of 2122122121212 is 2121212212212.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211256043 + ... + 1211257794.

Almost surely, 2^{2122122121212} is an apocalyptic number.

It is an amenable number.

2122122121212 is an abundant number, since it is smaller than the sum of its proper divisors (2897326551124).

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

2122122121212 is a wasteful number, since it uses less digits than its factorization.

2122122121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422513917 (or 2422513915 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

Adding to 2122122121212 its reverse (2121212212212), we get a palindrome (4243334333424).

The spelling of 2122122121212 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twelve".