20221021201222 has 32 divisors (see below), whose sum is σ = 32370551901792. Its totient is φ = 9440510313984.

The previous prime is 20221021201219. The next prime is 20221021201243. The reversal of 20221021201222 is 22210212012202.

It is a self number, because there is not a number n which added to its sum of digits gives 20221021201222.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 933813 + ... + 6427600.

It is an arithmetic number, because the mean of its divisors is an integer number (1011579746931).

Almost surely, 2^{20221021201222} is an apocalyptic number.

20221021201222 is a deficient number, since it is larger than the sum of its proper divisors (12149530700570).

20221021201222 is a wasteful number, since it uses less digits than its factorization.

20221021201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7362072.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20221021201222 its reverse (22210212012202), we get a palindrome (42431233213424).

The spelling of 20221021201222 in words is "twenty trillion, two hundred twenty-one billion, twenty-one million, two hundred one thousand, two hundred twenty-two".