22001020211222 has 16 divisors (see below), whose sum is σ = 35556740503872. Its totient is φ = 10149565325760.

The previous prime is 22001020211221. The next prime is 22001020211257. The reversal of 22001020211222 is 22211202010022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22001020211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001020211221) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 197930654 + ... + 198041777.

It is an arithmetic number, because the mean of its divisors is an integer number (2222296281492).

Almost surely, 2^{22001020211222} is an apocalyptic number.

22001020211222 is a deficient number, since it is larger than the sum of its proper divisors (13555720292650).

22001020211222 is a wasteful number, since it uses less digits than its factorization.

22001020211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395974583.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22001020211222 its reverse (22211202010022), we get a palindrome (44212222221244).

The spelling of 22001020211222 in words is "twenty-two trillion, one billion, twenty million, two hundred eleven thousand, two hundred twenty-two".