12225053155515 has 8 divisors (see below), whose sum is σ = 19560085048848. Its totient is φ = 6520028349600.

The previous prime is 12225053155459. The next prime is 12225053155541. The reversal of 12225053155515 is 51555135052221.

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

It is not a de Polignac number, because 12225053155515 - 2¹² = 12225053151419 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407501771836 + ... + 407501771865.

It is an arithmetic number, because the mean of its divisors is an integer number (2445010631106).

Almost surely, 2^{12225053155515} is an apocalyptic number.

12225053155515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12225053155515 is a deficient number, since it is larger than the sum of its proper divisors (7335031893333).

12225053155515 is an equidigital number, since it uses as much as digits as its factorization.

12225053155515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815003543709.

The product of its (nonzero) digits is 375000, while the sum is 42.

The spelling of 12225053155515 in words is "twelve trillion, two hundred twenty-five billion, fifty-three million, one hundred fifty-five thousand, five hundred fifteen".