22122020201221 has 8 divisors (see below), whose sum is σ = 22130622010880. Its totient is φ = 22113420036192.

The previous prime is 22122020201207. The next prime is 22122020201231. The reversal of 22122020201221 is 12210202022122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22122020201221 - 2¹⁵ = 22122020168453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122020201231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26846281 + ... + 27658033.

It is an arithmetic number, because the mean of its divisors is an integer number (2766327751360).

Almost surely, 2^{22122020201221} is an apocalyptic number.

It is an amenable number.

22122020201221 is a deficient number, since it is larger than the sum of its proper divisors (8601809659).

22122020201221 is an equidigital number, since it uses as much as digits as its factorization.

22122020201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822315.

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

Adding to 22122020201221 its reverse (12210202022122), we get a palindrome (34332222223343).

The spelling of 22122020201221 in words is "twenty-two trillion, one hundred twenty-two billion, twenty million, two hundred one thousand, two hundred twenty-one".