12108220378036 has 12 divisors (see below), whose sum is σ = 21548527791840. Its totient is φ = 5951498151800.

The previous prime is 12108220378031. The next prime is 12108220378057. The reversal of 12108220378036 is 63087302280121.

It is a junction number, because it is equal to n+sod(n) for n = 12108220377983 and 12108220378001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12108220378031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25653009040 + ... + 25653009511.

It is an arithmetic number, because the mean of its divisors is an integer number (1795710649320).

Almost surely, 2^{12108220378036} is an apocalyptic number.

It is an amenable number.

12108220378036 is a deficient number, since it is larger than the sum of its proper divisors (9440307413804).

12108220378036 is a wasteful number, since it uses less digits than its factorization.

12108220378036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51306018614 (or 51306018612 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 12108220378036 in words is "twelve trillion, one hundred eight billion, two hundred twenty million, three hundred seventy-eight thousand, thirty-six".