1122112212197 has 2 divisors, whose sum is σ = 1122112212198. Its totient is φ = 1122112212196.

The previous prime is 1122112212167. The next prime is 1122112212241. The reversal of 1122112212197 is 7912122112211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1096797492961 + 25314719236 = 1047281^2 + 159106^2 .

It is an emirp because it is prime and its reverse (7912122112211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122112212197 - 2¹² = 1122112208101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122112212157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561056106098 + 561056106099.

It is an arithmetic number, because the mean of its divisors is an integer number (561056106099).

Almost surely, 2^{1122112212197} is an apocalyptic number.

It is an amenable number.

1122112212197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122112212197 is an equidigital number, since it uses as much as digits as its factorization.

1122112212197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 32.

The spelling of 1122112212197 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, one hundred ninety-seven".