1222112334389 has 2 divisors, whose sum is σ = 1222112334390. Its totient is φ = 1222112334388.

The previous prime is 1222112334353. The next prime is 1222112334481. The reversal of 1222112334389 is 9834332112221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 656330060164 + 565782274225 = 810142^2 + 752185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222112334389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222112334319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611056167194 + 611056167195.

It is an arithmetic number, because the mean of its divisors is an integer number (611056167195).

Almost surely, 2^{1222112334389} is an apocalyptic number.

It is an amenable number.

1222112334389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222112334389 is an equidigital number, since it uses as much as digits as its factorization.

1222112334389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The spelling of 1222112334389 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, three hundred thirty-four thousand, three hundred eighty-nine".