2211202111211 has 2 divisors, whose sum is σ = 2211202111212. Its totient is φ = 2211202111210.

The previous prime is 2211202111171. The next prime is 2211202111219. The reversal of 2211202111211 is 1121112021122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2211202111211 - 2²⁶ = 2211135002347 is a prime.

It is a super-2 number, since 2×2211202111211² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2211202111211.

It is not a weakly prime, because it can be changed into another prime (2211202111219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105601055605 + 1105601055606.

It is an arithmetic number, because the mean of its divisors is an integer number (1105601055606).

Almost surely, 2^{2211202111211} is an apocalyptic number.

2211202111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211202111211 is an equidigital number, since it uses as much as digits as its factorization.

2211202111211 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 2211202111211 its reverse (1121112021122), we get a palindrome (3332314132333).

The spelling of 2211202111211 in words is "two trillion, two hundred eleven billion, two hundred two million, one hundred eleven thousand, two hundred eleven".