120221222002157 has 2 divisors, whose sum is σ = 120221222002158. Its totient is φ = 120221222002156.

The previous prime is 120221222002151. The next prime is 120221222002181. The reversal of 120221222002157 is 751200222122021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108894672138121 + 11326549864036 = 10435261^2 + 3365494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120221222002157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120221222002151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110611001078 + 60110611001079.

It is an arithmetic number, because the mean of its divisors is an integer number (60110611001079).

Almost surely, 2^{120221222002157} is an apocalyptic number.

It is an amenable number.

120221222002157 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221222002157 is an equidigital number, since it uses as much as digits as its factorization.

120221222002157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 29.

Adding to 120221222002157 its reverse (751200222122021), we get a palindrome (871421444124178).

The spelling of 120221222002157 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, two thousand, one hundred fifty-seven".