212243552194433 has 2 divisors, whose sum is σ = 212243552194434. Its totient is φ = 212243552194432.

The previous prime is 212243552194403. The next prime is 212243552194493. The reversal of 212243552194433 is 334491255342212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209279535451009 + 2964016743424 = 14466497^2 + 1721632^2 .

It is a cyclic number.

It is not a de Polignac number, because 212243552194433 - 2¹⁶ = 212243552128897 is a prime.

It is a super-2 number, since 2×212243552194433² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212243552194403) 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, 106121776097216 + 106121776097217.

It is an arithmetic number, because the mean of its divisors is an integer number (106121776097217).

Almost surely, 2^{212243552194433} is an apocalyptic number.

It is an amenable number.

212243552194433 is a deficient number, since it is larger than the sum of its proper divisors (1).

212243552194433 is an equidigital number, since it uses as much as digits as its factorization.

212243552194433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6220800, while the sum is 50.

The spelling of 212243552194433 in words is "two hundred twelve trillion, two hundred forty-three billion, five hundred fifty-two million, one hundred ninety-four thousand, four hundred thirty-three".