212021222122 has 16 divisors (see below), whose sum is σ = 330304995072. Its totient is φ = 101961516960.

The previous prime is 212021222033. The next prime is 212021222141. The reversal of 212021222122 is 221222120212.

It is a self number, because there is not a number n which added to its sum of digits gives 212021222122.

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, 10479763 + ... + 10499974.

It is an arithmetic number, because the mean of its divisors is an integer number (20644062192).

Almost surely, 2^212021222122 is an apocalyptic number.

212021222122 is a deficient number, since it is larger than the sum of its proper divisors (118283772950).

212021222122 is a wasteful number, since it uses less digits than its factorization.

212021222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20979933.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212021222122 its reverse (221222120212), we get a palindrome (433243342334).

The spelling of 212021222122 in words is "two hundred twelve billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".