22012121200211 has 4 divisors (see below), whose sum is σ = 22022450682024. Its totient is φ = 22001791718400.

The previous prime is 22012121200207. The next prime is 22012121200219. The reversal of 22012121200211 is 11200212121022.

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 22012121200211 - 2² = 22012121200207 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 22012121200211.

It is not an unprimeable number, because it can be changed into a prime (22012121200219) 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, 5164737710 + ... + 5164741971.

It is an arithmetic number, because the mean of its divisors is an integer number (5505612670506).

Almost surely, 2^{22012121200211} is an apocalyptic number.

22012121200211 is a deficient number, since it is larger than the sum of its proper divisors (10329481813).

22012121200211 is a wasteful number, since it uses less digits than its factorization.

22012121200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10329481812.

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

Adding to 22012121200211 its reverse (11200212121022), we get a palindrome (33212333321233).

The spelling of 22012121200211 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, two hundred thousand, two hundred eleven".