1224861563117 has 2 divisors, whose sum is σ = 1224861563118. Its totient is φ = 1224861563116.

The previous prime is 1224861562999. The next prime is 1224861563129. The reversal of 1224861563117 is 7113651684221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1220596297636 + 4265265481 = 1104806^2 + 65309^2 .

It is an emirp because it is prime and its reverse (7113651684221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224861563117 - 2¹⁶ = 1224861497581 is a prime.

It is a super-3 number, since 3×1224861563117³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224861533117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612430781558 + 612430781559.

It is an arithmetic number, because the mean of its divisors is an integer number (612430781559).

Almost surely, 2^{1224861563117} is an apocalyptic number.

It is an amenable number.

1224861563117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224861563117 is an equidigital number, since it uses as much as digits as its factorization.

1224861563117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 47.

The spelling of 1224861563117 in words is "one trillion, two hundred twenty-four billion, eight hundred sixty-one million, five hundred sixty-three thousand, one hundred seventeen".