12214515545 has 8 divisors (see below), whose sum is σ = 14660084040. Its totient is φ = 9769835520.

The previous prime is 12214515529. The next prime is 12214515569. The reversal of 12214515545 is 54551541221.

12214515545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29888089 + 12184627456 = 5467^2 + 110384^2 .

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

It is not a de Polignac number, because 12214515545 - 2⁴ = 12214515529 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191486 + ... + 247175.

It is an arithmetic number, because the mean of its divisors is an integer number (1832510505).

Almost surely, 2^12214515545 is an apocalyptic number.

It is an amenable number.

12214515545 is a deficient number, since it is larger than the sum of its proper divisors (2445568495).

12214515545 is an equidigital number, since it uses as much as digits as its factorization.

12214515545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444235.

The product of its digits is 40000, while the sum is 35.

The spelling of 12214515545 in words is "twelve billion, two hundred fourteen million, five hundred fifteen thousand, five hundred forty-five".