1224204040057 has 2 divisors, whose sum is σ = 1224204040058. Its totient is φ = 1224204040056.

The previous prime is 1224204040027. The next prime is 1224204040133. The reversal of 1224204040057 is 7500404024221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184144417856 + 40059622201 = 1088184^2 + 200149^2 .

It is an emirp because it is prime and its reverse (7500404024221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224204040057 - 2¹⁵ = 1224204007289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1224204040027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612102020028 + 612102020029.

It is an arithmetic number, because the mean of its divisors is an integer number (612102020029).

Almost surely, 2^{1224204040057} is an apocalyptic number.

It is an amenable number.

1224204040057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224204040057 is an equidigital number, since it uses as much as digits as its factorization.

1224204040057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 31.

Adding to 1224204040057 its reverse (7500404024221), we get a palindrome (8724608064278).

The spelling of 1224204040057 in words is "one trillion, two hundred twenty-four billion, two hundred four million, forty thousand, fifty-seven".