1222111120211 has 2 divisors, whose sum is σ = 1222111120212. Its totient is φ = 1222111120210.

The previous prime is 1222111120189. The next prime is 1222111120297. The reversal of 1222111120211 is 1120211112221.

It is a weak prime.

It is an emirp because it is prime and its reverse (1120211112221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222111120211 - 2¹⁴ = 1222111103827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222111120211.

It is not a weakly prime, because it can be changed into another prime (1222111120411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611055560105 + 611055560106.

It is an arithmetic number, because the mean of its divisors is an integer number (611055560106).

Almost surely, 2^{1222111120211} is an apocalyptic number.

1222111120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222111120211 is an equidigital number, since it uses as much as digits as its factorization.

1222111120211 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 1222111120211 its reverse (1120211112221), we get a palindrome (2342322232432).

The spelling of 1222111120211 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twenty thousand, two hundred eleven".