6212255155481 has 2 divisors, whose sum is σ = 6212255155482. Its totient is φ = 6212255155480.

The previous prime is 6212255155453. The next prime is 6212255155489. The reversal of 6212255155481 is 1845515522126.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5462429049856 + 749826105625 = 2337184^2 + 865925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6212255155481 is a prime.

It is a super-2 number, since 2×6212255155481² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6212255155489) 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, 3106127577740 + 3106127577741.

It is an arithmetic number, because the mean of its divisors is an integer number (3106127577741).

Almost surely, 2^{6212255155481} is an apocalyptic number.

It is an amenable number.

6212255155481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6212255155481 is an equidigital number, since it uses as much as digits as its factorization.

6212255155481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960000, while the sum is 47.

The spelling of 6212255155481 in words is "six trillion, two hundred twelve billion, two hundred fifty-five million, one hundred fifty-five thousand, four hundred eighty-one".