2122212112222 has 4 divisors (see below), whose sum is σ = 3183318168336. Its totient is φ = 1061106056110.

The previous prime is 2122212112187. The next prime is 2122212112247. The reversal of 2122212112222 is 2222112122212.

It is a semiprime because it is the product of two primes.

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

It is a junction number, because it is equal to n+sod(n) for n = 2122212112193 and 2122212112202.

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, 530553028054 + ... + 530553028057.

It is an arithmetic number, because the mean of its divisors is an integer number (795829542084).

Almost surely, 2^{2122212112222} is an apocalyptic number.

2122212112222 is a deficient number, since it is larger than the sum of its proper divisors (1061106056114).

2122212112222 is a wasteful number, since it uses less digits than its factorization.

2122212112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061106056113.

The product of its digits is 512, while the sum is 22.

Adding to 2122212112222 its reverse (2222112122212), we get a palindrome (4344324234434).

The spelling of 2122212112222 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twelve thousand, two hundred twenty-two".