22200221220211 has 4 divisors (see below), whose sum is σ = 22232725205112. Its totient is φ = 22167717235312.

The previous prime is 22200221220187. The next prime is 22200221220241. The reversal of 22200221220211 is 11202212200222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22200221220211 - 2¹¹ = 22200221218163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22200221220241) 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, 16251991426 + ... + 16251992791.

It is an arithmetic number, because the mean of its divisors is an integer number (5558181301278).

Almost surely, 2^{22200221220211} is an apocalyptic number.

22200221220211 is a deficient number, since it is larger than the sum of its proper divisors (32503984901).

22200221220211 is an equidigital number, since it uses as much as digits as its factorization.

22200221220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32503984900.

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

Adding to 22200221220211 its reverse (11202212200222), we get a palindrome (33402433420433).

The spelling of 22200221220211 in words is "twenty-two trillion, two hundred billion, two hundred twenty-one million, two hundred twenty thousand, two hundred eleven".