2122022221212 has 24 divisors (see below), whose sum is σ = 4951444618512. Its totient is φ = 707332249600.

The previous prime is 2122022221211. The next prime is 2122022221301. The reversal of 2122022221212 is 2121222202212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122022221211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24412 + ... + 2060252.

It is an arithmetic number, because the mean of its divisors is an integer number (206310192438).

Almost surely, 2^{2122022221212} is an apocalyptic number.

It is an amenable number.

2122022221212 is an abundant number, since it is smaller than the sum of its proper divisors (2829422397300).

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

2122022221212 is a wasteful number, since it uses less digits than its factorization.

2122022221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122709 (or 2122707 counting only the distinct ones).

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

Adding to 2122022221212 its reverse (2121222202212), we get a palindrome (4243244423424).

The spelling of 2122022221212 in words is "two trillion, one hundred twenty-two billion, twenty-two million, two hundred twenty-one thousand, two hundred twelve".