12112554212 has 24 divisors (see below), whose sum is σ = 23209318272. Its totient is φ = 5485384800.

The previous prime is 12112554161. The next prime is 12112554229. The reversal of 12112554212 is 21245521121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495983 + ... + 519830.

It is an arithmetic number, because the mean of its divisors is an integer number (967054928).

Almost surely, 2^12112554212 is an apocalyptic number.

It is an amenable number.

12112554212 is a deficient number, since it is larger than the sum of its proper divisors (11096764060).

12112554212 is a wasteful number, since it uses less digits than its factorization.

12112554212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016099 (or 1016097 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

The spelling of 12112554212 in words is "twelve billion, one hundred twelve million, five hundred fifty-four thousand, two hundred twelve".