12120211011016 has 32 divisors (see below), whose sum is σ = 23423854154040. Its totient is φ = 5875032480768.

The previous prime is 12120211011001. The next prime is 12120211011017. The reversal of 12120211011016 is 61011011202121.

It can be written as a sum of positive squares in 4 ways, for example, as 11488100148100 + 632110862916 = 3389410^2 + 795054^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12120211010984 and 12120211011002.

It is not an unprimeable number, because it can be changed into a prime (12120211011017) 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, 73828945 + ... + 73992928.

Almost surely, 2^{12120211011016} is an apocalyptic number.

It is an amenable number.

12120211011016 is a deficient number, since it is larger than the sum of its proper divisors (11303643143024).

12120211011016 is a wasteful number, since it uses less digits than its factorization.

12120211011016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147822193 (or 147822189 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 12120211011016 its reverse (61011011202121), we get a palindrome (73131222213137).

The spelling of 12120211011016 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, eleven thousand, sixteen".