12262220557 has 2 divisors, whose sum is σ = 12262220558. Its totient is φ = 12262220556.

The previous prime is 12262220543. The next prime is 12262220563. The reversal of 12262220557 is 75502226221.

12262220557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11325003561 + 937216996 = 106419^2 + 30614^2 .

It is an emirp because it is prime and its reverse (75502226221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12262220557 - 2³¹ = 10114736909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12262220527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6131110278 + 6131110279.

It is an arithmetic number, because the mean of its divisors is an integer number (6131110279).

Almost surely, 2^12262220557 is an apocalyptic number.

It is an amenable number.

12262220557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12262220557 is an equidigital number, since it uses as much as digits as its factorization.

12262220557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 12262220557 its reverse (75502226221), we get a palindrome (87764446778).

The spelling of 12262220557 in words is "twelve billion, two hundred sixty-two million, two hundred twenty thousand, five hundred fifty-seven".