22022001012221 has 8 divisors (see below), whose sum is σ = 26035863265920. Its totient is φ = 18225104285808.

The previous prime is 22022001012181. The next prime is 22022001012281. The reversal of 22022001012221 is 12221010022022.

It is a happy number.

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

It is not a de Polignac number, because 22022001012221 - 2³⁸ = 21747123105277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22022001012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022001012281) 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, 54241381601 + ... + 54241382006.

It is an arithmetic number, because the mean of its divisors is an integer number (3254482908240).

Almost surely, 2^{22022001012221} is an apocalyptic number.

It is an amenable number.

22022001012221 is a deficient number, since it is larger than the sum of its proper divisors (4013862253699).

22022001012221 is a wasteful number, since it uses less digits than its factorization.

22022001012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108482763643.

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

Adding to 22022001012221 its reverse (12221010022022), we get a palindrome (34243011034243).

The spelling of 22022001012221 in words is "twenty-two trillion, twenty-two billion, one million, twelve thousand, two hundred twenty-one".