1228411255061 has 2 divisors, whose sum is σ = 1228411255062. Its totient is φ = 1228411255060.

The previous prime is 1228411255021. The next prime is 1228411255063. The reversal of 1228411255061 is 1605521148221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 998188820836 + 230222434225 = 999094^2 + 479815^2 .

It is an emirp because it is prime and its reverse (1605521148221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1228411255061 is a prime.

It is a super-2 number, since 2×1228411255061² (a number of 25 digits) contains 22 as substring.

Together with 1228411255063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228411255063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614205627530 + 614205627531.

It is an arithmetic number, because the mean of its divisors is an integer number (614205627531).

Almost surely, 2^{1228411255061} is an apocalyptic number.

It is an amenable number.

1228411255061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228411255061 is an equidigital number, since it uses as much as digits as its factorization.

1228411255061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 38.

The spelling of 1228411255061 in words is "one trillion, two hundred twenty-eight billion, four hundred eleven million, two hundred fifty-five thousand, sixty-one".