12162116120251 has 16 divisors (see below), whose sum is σ = 12388818002400. Its totient is φ = 11936322662400.

The previous prime is 12162116120237. The next prime is 12162116120351. The reversal of 12162116120251 is 15202161126121.

It is a cyclic number.

It is not a de Polignac number, because 12162116120251 - 2²⁷ = 12161981902523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12162116120201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54338811 + ... + 54562171.

It is an arithmetic number, because the mean of its divisors is an integer number (774301125150).

Almost surely, 2^{12162116120251} is an apocalyptic number.

12162116120251 is a deficient number, since it is larger than the sum of its proper divisors (226701882149).

12162116120251 is a wasteful number, since it uses less digits than its factorization.

12162116120251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225390.

The product of its (nonzero) digits is 2880, while the sum is 31.

Adding to 12162116120251 its reverse (15202161126121), we get a palindrome (27364277246372).

The spelling of 12162116120251 in words is "twelve trillion, one hundred sixty-two billion, one hundred sixteen million, one hundred twenty thousand, two hundred fifty-one".