12215464513562 has 4 divisors (see below), whose sum is σ = 18323196770346. Its totient is φ = 6107732256780.

The previous prime is 12215464513543. The next prime is 12215464513589. The reversal of 12215464513562 is 26531546451221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11250396013921 + 965068499641 = 3354161^2 + 982379^2 .

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 as a sum of consecutive naturals, namely, 3053866128389 + ... + 3053866128392.

Almost surely, 2^{12215464513562} is an apocalyptic number.

12215464513562 is a deficient number, since it is larger than the sum of its proper divisors (6107732256784).

12215464513562 is an equidigital number, since it uses as much as digits as its factorization.

12215464513562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6107732256783.

The product of its digits is 1728000, while the sum is 47.

The spelling of 12215464513562 in words is "twelve trillion, two hundred fifteen billion, four hundred sixty-four million, five hundred thirteen thousand, five hundred sixty-two".