1222120211959 has 2 divisors, whose sum is σ = 1222120211960. Its totient is φ = 1222120211958.

The previous prime is 1222120211941. The next prime is 1222120212007. The reversal of 1222120211959 is 9591120212221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222120211959 - 2¹¹ = 1222120209911 is a prime.

It is a super-2 number, since 2×1222120211959² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222120211359) 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, 611060105979 + 611060105980.

It is an arithmetic number, because the mean of its divisors is an integer number (611060105980).

Almost surely, 2^{1222120211959} is an apocalyptic number.

1222120211959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222120211959 is an equidigital number, since it uses as much as digits as its factorization.

1222120211959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 1222120211959 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, two hundred eleven thousand, nine hundred fifty-nine".