12120294554 has 8 divisors (see below), whose sum is σ = 18436504608. Its totient is φ = 5974793020.

The previous prime is 12120294553. The next prime is 12120294577. The reversal of 12120294554 is 45549202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12120294553) 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, 42676952 + ... + 42677235.

It is an arithmetic number, because the mean of its divisors is an integer number (2304563076).

Almost surely, 2^12120294554 is an apocalyptic number.

12120294554 is a deficient number, since it is larger than the sum of its proper divisors (6316210054).

12120294554 is an equidigital number, since it uses as much as digits as its factorization.

12120294554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85354260.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 12120294554 its reverse (45549202121), we get a palindrome (57669496675).

The spelling of 12120294554 in words is "twelve billion, one hundred twenty million, two hundred ninety-four thousand, five hundred fifty-four".