122222112213 has 8 divisors (see below), whose sum is σ = 164206807776. Its totient is φ = 80859412400.

The previous prime is 122222112203. The next prime is 122222112293. The reversal of 122222112213 is 312211222221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122222112213 - 2⁹ = 122222111701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122222112213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222112203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155498478 + ... + 155499263.

It is an arithmetic number, because the mean of its divisors is an integer number (20525850972).

Almost surely, 2^122222112213 is an apocalyptic number.

It is an amenable number.

122222112213 is a deficient number, since it is larger than the sum of its proper divisors (41984695563).

122222112213 is a wasteful number, since it uses less digits than its factorization.

122222112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310997875.

The product of its digits is 384, while the sum is 21.

Adding to 122222112213 its reverse (312211222221), we get a palindrome (434433334434).

The spelling of 122222112213 in words is "one hundred twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, two hundred thirteen".