22211320312 has 8 divisors (see below), whose sum is σ = 41646225600. Its totient is φ = 11105660152.

The previous prime is 22211320291. The next prime is 22211320349. The reversal of 22211320312 is 21302311222.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22211320312.

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, 1388207512 + ... + 1388207527.

It is an arithmetic number, because the mean of its divisors is an integer number (5205778200).

Almost surely, 2^22211320312 is an apocalyptic number.

It is an amenable number.

22211320312 is a deficient number, since it is larger than the sum of its proper divisors (19434905288).

22211320312 is a wasteful number, since it uses less digits than its factorization.

22211320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776415045 (or 2776415041 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22211320312 its reverse (21302311222), we get a palindrome (43513631534).

The spelling of 22211320312 in words is "twenty-two billion, two hundred eleven million, three hundred twenty thousand, three hundred twelve".