22200221012 has 12 divisors (see below), whose sum is σ = 38900912820. Its totient is φ = 11085674496.

The previous prime is 22200221011. The next prime is 22200221039. The reversal of 22200221012 is 21012200222.

It can be written as a sum of positive squares in 2 ways, for example, as 9146244496 + 13053976516 = 95636^2 + 114254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200221011) 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 3 ways as a sum of consecutive naturals, for example, 3605543 + ... + 3611694.

It is an arithmetic number, because the mean of its divisors is an integer number (3241742735).

Almost surely, 2^22200221012 is an apocalyptic number.

It is an amenable number.

22200221012 is a deficient number, since it is larger than the sum of its proper divisors (16700691808).

22200221012 is a wasteful number, since it uses less digits than its factorization.

22200221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218010 (or 7218008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22200221012 its reverse (21012200222), we get a palindrome (43212421234).

The spelling of 22200221012 in words is "twenty-two billion, two hundred million, two hundred twenty-one thousand, twelve".