212140302404117 has 2 divisors, whose sum is σ = 212140302404118. Its totient is φ = 212140302404116.

The previous prime is 212140302404077. The next prime is 212140302404213. The reversal of 212140302404117 is 711404203041212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155249955284356 + 56890347119761 = 12459934^2 + 7542569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212140302404117 is a prime.

It is a super-2 number, since 2×212140302404117² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212140302494117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106070151202058 + 106070151202059.

It is an arithmetic number, because the mean of its divisors is an integer number (106070151202059).

Almost surely, 2^{212140302404117} is an apocalyptic number.

It is an amenable number.

212140302404117 is a deficient number, since it is larger than the sum of its proper divisors (1).

212140302404117 is an equidigital number, since it uses as much as digits as its factorization.

212140302404117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

Adding to 212140302404117 its reverse (711404203041212), we get a palindrome (923544505445329).

The spelling of 212140302404117 in words is "two hundred twelve trillion, one hundred forty billion, three hundred two million, four hundred four thousand, one hundred seventeen".