12225404515 has 4 divisors (see below), whose sum is σ = 14670485424. Its totient is φ = 9780323608.

The previous prime is 12225404507. The next prime is 12225404533. The reversal of 12225404515 is 51540452221.

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

It is a cyclic number.

It is not a de Polignac number, because 12225404515 - 2³ = 12225404507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222540447 + ... + 1222540456.

It is an arithmetic number, because the mean of its divisors is an integer number (3667621356).

Almost surely, 2^12225404515 is an apocalyptic number.

12225404515 is a deficient number, since it is larger than the sum of its proper divisors (2445080909).

12225404515 is an equidigital number, since it uses as much as digits as its factorization.

12225404515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445080908.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 12225404515 its reverse (51540452221), we get a palindrome (63765856736).

The spelling of 12225404515 in words is "twelve billion, two hundred twenty-five million, four hundred four thousand, five hundred fifteen".