12162170612 has 6 divisors (see below), whose sum is σ = 21283798578. Its totient is φ = 6081085304.

The previous prime is 12162170563. The next prime is 12162170627. The reversal of 12162170612 is 21607126121.

It can be written as a sum of positive squares in only one way, i.e., 12129497956 + 32672656 = 110134^2 + 5716^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1520271323 + ... + 1520271330.

It is an arithmetic number, because the mean of its divisors is an integer number (3547299763).

Almost surely, 2^12162170612 is an apocalyptic number.

It is an amenable number.

12162170612 is a deficient number, since it is larger than the sum of its proper divisors (9121627966).

12162170612 is a wasteful number, since it uses less digits than its factorization.

12162170612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040542657 (or 3040542655 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 12162170612 its reverse (21607126121), we get a palindrome (33769296733).

The spelling of 12162170612 in words is "twelve billion, one hundred sixty-two million, one hundred seventy thousand, six hundred twelve".