22111100200221 has 4 divisors (see below), whose sum is σ = 29481466933632. Its totient is φ = 14740733466812.

The previous prime is 22111100200183. The next prime is 22111100200271. The reversal of 22111100200221 is 12200200111122.

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 22111100200221 - 2⁶ = 22111100200157 is a prime.

It is a super-3 number, since 3×22111100200221³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22111100200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111100200271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3685183366701 + ... + 3685183366706.

It is an arithmetic number, because the mean of its divisors is an integer number (7370366733408).

Almost surely, 2^{22111100200221} is an apocalyptic number.

It is an amenable number.

22111100200221 is a deficient number, since it is larger than the sum of its proper divisors (7370366733411).

22111100200221 is an equidigital number, since it uses as much as digits as its factorization.

22111100200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370366733410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22111100200221 its reverse (12200200111122), we get a palindrome (34311300311343).

The spelling of 22111100200221 in words is "twenty-two trillion, one hundred eleven billion, one hundred million, two hundred thousand, two hundred twenty-one".