22221312222 has 16 divisors (see below), whose sum is σ = 45643776912. Its totient is φ = 7206912000.

The previous prime is 22221312209. The next prime is 22221312271.

22221312222 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

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, 50047779 + ... + 50048222.

It is an arithmetic number, because the mean of its divisors is an integer number (2852736057).

Almost surely, 2^22221312222 is an apocalyptic number.

22221312222 is an abundant number, since it is smaller than the sum of its proper divisors (23422464690).

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

22221312222 is a wasteful number, since it uses less digits than its factorization.

22221312222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100096043.

The product of its digits is 768, while the sum is 21.

The spelling of 22221312222 in words is "twenty-two billion, two hundred twenty-one million, three hundred twelve thousand, two hundred twenty-two".