12120552445 has 16 divisors (see below), whose sum is σ = 14750056512. Its totient is φ = 9559624320.

The previous prime is 12120552421. The next prime is 12120552473. The reversal of 12120552445 is 54425502121.

It is not a de Polignac number, because 12120552445 - 2⁷ = 12120552317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1119910 + ... + 1130680.

It is an arithmetic number, because the mean of its divisors is an integer number (921878532).

Almost surely, 2^12120552445 is an apocalyptic number.

It is an amenable number.

12120552445 is a deficient number, since it is larger than the sum of its proper divisors (2629504067).

12120552445 is a wasteful number, since it uses less digits than its factorization.

12120552445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13932.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 12120552445 in words is "twelve billion, one hundred twenty million, five hundred fifty-two thousand, four hundred forty-five".