222113211222 has 48 divisors (see below), whose sum is σ = 519430795632. Its totient is φ = 63132088320.

The previous prime is 222113211139. The next prime is 222113211227. The reversal of 222113211222 is 222112311222.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222113211227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1900479 + ... + 2013962.

It is an arithmetic number, because the mean of its divisors is an integer number (10821474909).

Almost surely, 2^222113211222 is an apocalyptic number.

222113211222 is an abundant number, since it is smaller than the sum of its proper divisors (297317584410).

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

222113211222 is a wasteful number, since it uses less digits than its factorization.

222113211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914653 (or 3914646 counting only the distinct ones).

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

Adding to 222113211222 its reverse (222112311222), we get a palindrome (444225522444).

The spelling of 222113211222 in words is "two hundred twenty-two billion, one hundred thirteen million, two hundred eleven thousand, two hundred twenty-two".