12214154505 has 32 divisors (see below), whose sum is σ = 22640419584. Its totient is φ = 5507122176.

The previous prime is 12214154479. The next prime is 12214154549. The reversal of 12214154505 is 50545141221.

It is not a de Polignac number, because 12214154505 - 2²¹ = 12212057353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 789084 + ... + 804413.

It is an arithmetic number, because the mean of its divisors is an integer number (707513112).

Almost surely, 2^12214154505 is an apocalyptic number.

12214154505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12214154505 is a deficient number, since it is larger than the sum of its proper divisors (10426265079).

12214154505 is a wasteful number, since it uses less digits than its factorization.

12214154505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593585.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 12214154505 its reverse (50545141221), we get a palindrome (62759295726).

The spelling of 12214154505 in words is "twelve billion, two hundred fourteen million, one hundred fifty-four thousand, five hundred five".