22200011221211 has 4 divisors (see below), whose sum is σ = 22236949676424. Its totient is φ = 22163072766000.

The previous prime is 22200011221183. The next prime is 22200011221217. The reversal of 22200011221211 is 11212211000222.

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 22200011221211 - 2⁶ = 22200011221147 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 22200011221211.

It is not an unprimeable number, because it can be changed into a prime (22200011221217) 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, 18469226705 + ... + 18469227906.

It is an arithmetic number, because the mean of its divisors is an integer number (5559237419106).

Almost surely, 2^{22200011221211} is an apocalyptic number.

22200011221211 is a deficient number, since it is larger than the sum of its proper divisors (36938455213).

22200011221211 is an equidigital number, since it uses as much as digits as its factorization.

22200011221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36938455212.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22200011221211 its reverse (11212211000222), we get a palindrome (33412222221433).

The spelling of 22200011221211 in words is "twenty-two trillion, two hundred billion, eleven million, two hundred twenty-one thousand, two hundred eleven".