22211323012 has 6 divisors (see below), whose sum is σ = 38869815278. Its totient is φ = 11105661504.

The previous prime is 22211323009. The next prime is 22211323037. The reversal of 22211323012 is 21032311222.

It can be written as a sum of positive squares in only one way, i.e., 15701092416 + 6510230596 = 125304^2 + 80686^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2776415373 + ... + 2776415380.

Almost surely, 2^22211323012 is an apocalyptic number.

It is an amenable number.

22211323012 is a deficient number, since it is larger than the sum of its proper divisors (16658492266).

22211323012 is a wasteful number, since it uses less digits than its factorization.

22211323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552830757 (or 5552830755 counting only the distinct ones).

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

Adding to 22211323012 its reverse (21032311222), we get a palindrome (43243634234).

The spelling of 22211323012 in words is "twenty-two billion, two hundred eleven million, three hundred twenty-three thousand, twelve".