22211110201211 has 2 divisors, whose sum is σ = 22211110201212. Its totient is φ = 22211110201210.

The previous prime is 22211110201199. The next prime is 22211110201253. The reversal of 22211110201211 is 11210201111222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22211110201211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22211110201211.

It is not a weakly prime, because it can be changed into another prime (22211110201411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105555100605 + 11105555100606.

It is an arithmetic number, because the mean of its divisors is an integer number (11105555100606).

Almost surely, 2^{22211110201211} is an apocalyptic number.

22211110201211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211110201211 is an equidigital number, since it uses as much as digits as its factorization.

22211110201211 is an evil number, because the sum of its binary digits is even.

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

Adding to 22211110201211 its reverse (11210201111222), we get a palindrome (33421311312433).

The spelling of 22211110201211 in words is "twenty-two trillion, two hundred eleven billion, one hundred ten million, two hundred one thousand, two hundred eleven".