22011211120211 has 4 divisors (see below), whose sum is σ = 22224912199152. Its totient is φ = 21797510041272.

The previous prime is 22011211120207. The next prime is 22011211120237. The reversal of 22011211120211 is 11202111211022.

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 22011211120211 - 2² = 22011211120207 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 22011211120211.

It is not an unprimeable number, because it can be changed into a prime (22011211120411) 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, 106850539316 + ... + 106850539521.

It is an arithmetic number, because the mean of its divisors is an integer number (5556228049788).

Almost surely, 2^{22011211120211} is an apocalyptic number.

22011211120211 is a deficient number, since it is larger than the sum of its proper divisors (213701078941).

22011211120211 is a wasteful number, since it uses less digits than its factorization.

22011211120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213701078940.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22011211120211 its reverse (11202111211022), we get a palindrome (33213322331233).

The spelling of 22011211120211 in words is "twenty-two trillion, eleven billion, two hundred eleven million, one hundred twenty thousand, two hundred eleven".