22022201100221 has 4 divisors (see below), whose sum is σ = 25168229828832. Its totient is φ = 18876172371612.

The previous prime is 22022201100167. The next prime is 22022201100259. The reversal of 22022201100221 is 12200110222022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22022201100221 - 2¹⁴ = 22022201083837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22022201100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022201100281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573014364295 + ... + 1573014364308.

It is an arithmetic number, because the mean of its divisors is an integer number (6292057457208).

Almost surely, 2^{22022201100221} is an apocalyptic number.

It is an amenable number.

22022201100221 is a deficient number, since it is larger than the sum of its proper divisors (3146028728611).

22022201100221 is an equidigital number, since it uses as much as digits as its factorization.

22022201100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146028728610.

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

Adding to 22022201100221 its reverse (12200110222022), we get a palindrome (34222311322243).

The spelling of 22022201100221 in words is "twenty-two trillion, twenty-two billion, two hundred one million, one hundred thousand, two hundred twenty-one".