65212055034121 has 2 divisors, whose sum is σ = 65212055034122. Its totient is φ = 65212055034120.

The previous prime is 65212055034109. The next prime is 65212055034143. The reversal of 65212055034121 is 12143055021256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57067675119225 + 8144379914896 = 7554315^2 + 2853836^2 .

It is a cyclic number.

It is not a de Polignac number, because 65212055034121 - 2²³ = 65212046645513 is a prime.

It is a super-2 number, since 2×65212055034121² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65212055044121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32606027517060 + 32606027517061.

It is an arithmetic number, because the mean of its divisors is an integer number (32606027517061).

Almost surely, 2^{65212055034121} is an apocalyptic number.

It is an amenable number.

65212055034121 is a deficient number, since it is larger than the sum of its proper divisors (1).

65212055034121 is an equidigital number, since it uses as much as digits as its factorization.

65212055034121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 65212055034121 in words is "sixty-five trillion, two hundred twelve billion, fifty-five million, thirty-four thousand, one hundred twenty-one".