1220112120211 has 2 divisors, whose sum is σ = 1220112120212. Its totient is φ = 1220112120210.

The previous prime is 1220112120209. The next prime is 1220112120259. The reversal of 1220112120211 is 1120212110221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220112120211 - 2¹ = 1220112120209 is a prime.

Together with 1220112120209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1220112120611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610056060105 + 610056060106.

It is an arithmetic number, because the mean of its divisors is an integer number (610056060106).

Almost surely, 2^{1220112120211} is an apocalyptic number.

1220112120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220112120211 is an equidigital number, since it uses as much as digits as its factorization.

1220112120211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1220112120211 its reverse (1120212110221), we get a palindrome (2340324230432).

The spelling of 1220112120211 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred twenty thousand, two hundred eleven".