12215164527427 has 8 divisors (see below), whose sum is σ = 12220045916400. Its totient is φ = 12210283697664.

The previous prime is 12215164527413. The next prime is 12215164527437. The reversal of 12215164527427 is 72472546151221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12215164527427 is a prime.

It is a super-2 number, since 2×12215164527427² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12215164527437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46654899 + ... + 46915987.

It is an arithmetic number, because the mean of its divisors is an integer number (1527505739550).

Almost surely, 2^{12215164527427} is an apocalyptic number.

12215164527427 is a deficient number, since it is larger than the sum of its proper divisors (4881388973).

12215164527427 is a wasteful number, since it uses less digits than its factorization.

12215164527427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279605.

The product of its digits is 1881600, while the sum is 49.

The spelling of 12215164527427 in words is "twelve trillion, two hundred fifteen billion, one hundred sixty-four million, five hundred twenty-seven thousand, four hundred twenty-seven".