12154222037 has 2 divisors, whose sum is σ = 12154222038. Its totient is φ = 12154222036.

The previous prime is 12154222009. The next prime is 12154222099. The reversal of 12154222037 is 73022245121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8368773361 + 3785448676 = 91481^2 + 61526^2 .

It is a cyclic number.

It is not a de Polignac number, because 12154222037 - 2⁶ = 12154221973 is a prime.

It is a super-2 number, since 2×12154222037² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12154222337) 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, 6077111018 + 6077111019.

It is an arithmetic number, because the mean of its divisors is an integer number (6077111019).

Almost surely, 2^12154222037 is an apocalyptic number.

It is an amenable number.

12154222037 is a deficient number, since it is larger than the sum of its proper divisors (1).

12154222037 is an equidigital number, since it uses as much as digits as its factorization.

12154222037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 12154222037 its reverse (73022245121), we get a palindrome (85176467158).

The spelling of 12154222037 in words is "twelve billion, one hundred fifty-four million, two hundred twenty-two thousand, thirty-seven".