12102021200116 has 6 divisors (see below), whose sum is σ = 21178537100210. Its totient is φ = 6051010600056.

The previous prime is 12102021200107. The next prime is 12102021200117. The reversal of 12102021200116 is 61100212020121.

It can be written as a sum of positive squares in only one way, i.e., 9795935983716 + 2306085216400 = 3129846^2 + 1518580^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12102021200093 and 12102021200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102021200117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1512752650011 + ... + 1512752650018.

Almost surely, 2^{12102021200116} is an apocalyptic number.

It is an amenable number.

12102021200116 is a deficient number, since it is larger than the sum of its proper divisors (9076515900094).

12102021200116 is a wasteful number, since it uses less digits than its factorization.

12102021200116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025505300033 (or 3025505300031 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12102021200116 its reverse (61100212020121), we get a palindrome (73202233220237).

The spelling of 12102021200116 in words is "twelve trillion, one hundred two billion, twenty-one million, two hundred thousand, one hundred sixteen".