212234420431097 has 2 divisors, whose sum is σ = 212234420431098. Its totient is φ = 212234420431096.

The previous prime is 212234420431063. The next prime is 212234420431237. The reversal of 212234420431097 is 790134024432212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208855216926976 + 3379203504121 = 14451824^2 + 1838261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212234420431097 is a prime.

It is not a weakly prime, because it can be changed into another prime (212234420433097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106117210215548 + 106117210215549.

It is an arithmetic number, because the mean of its divisors is an integer number (106117210215549).

Almost surely, 2^{212234420431097} is an apocalyptic number.

It is an amenable number.

212234420431097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212234420431097 is an equidigital number, since it uses as much as digits as its factorization.

212234420431097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 212234420431097 in words is "two hundred twelve trillion, two hundred thirty-four billion, four hundred twenty million, four hundred thirty-one thousand, ninety-seven".