22211200010221 has 4 divisors (see below), whose sum is σ = 22211209747872. Its totient is φ = 22211190272572.

The previous prime is 22211200010161. The next prime is 22211200010243. The reversal of 22211200010221 is 12201000211222.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22211200010221 - 2¹⁷ = 22211199879149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22211200010195 and 22211200010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211200010521) 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, 600816 + ... + 6692038.

It is an arithmetic number, because the mean of its divisors is an integer number (5552802436968).

Almost surely, 2^{22211200010221} is an apocalyptic number.

It is an amenable number.

22211200010221 is a deficient number, since it is larger than the sum of its proper divisors (9737651).

22211200010221 is an equidigital number, since it uses as much as digits as its factorization.

22211200010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737650.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22211200010221 its reverse (12201000211222), we get a palindrome (34412200221443).

The spelling of 22211200010221 in words is "twenty-two trillion, two hundred eleven billion, two hundred million, ten thousand, two hundred twenty-one".