12161110602012 has 24 divisors (see below), whose sum is σ = 28376922475776. Its totient is φ = 4053561000048.

The previous prime is 12161110601999. The next prime is 12161110602019. The reversal of 12161110602012 is 21020601116121.

It is a super-2 number, since 2×12161110602012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161110602019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17460958 + ... + 18144069.

It is an arithmetic number, because the mean of its divisors is an integer number (1182371769824).

Almost surely, 2^{12161110602012} is an apocalyptic number.

12161110602012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12161110602012 is an abundant number, since it is smaller than the sum of its proper divisors (16215811873764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12161110602012 is a wasteful number, since it uses less digits than its factorization.

12161110602012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35633497 (or 35633495 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 12161110602012 its reverse (21020601116121), we get a palindrome (33181711718133).

The spelling of 12161110602012 in words is "twelve trillion, one hundred sixty-one billion, one hundred ten million, six hundred two thousand, twelve".