12212548765 has 8 divisors (see below), whose sum is σ = 14712083640. Its totient is φ = 9732022272.

The previous prime is 12212548693. The next prime is 12212548771. The reversal of 12212548765 is 56784521221.

It can be written as a sum of positive squares in 4 ways, for example, as 7531115524 + 4681433241 = 86782^2 + 68421^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12212548765 - 2³³ = 3622614173 is a prime.

It is a congruent number.

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, 4750680 + ... + 4753249.

It is an arithmetic number, because the mean of its divisors is an integer number (1839010455).

Almost surely, 2^12212548765 is an apocalyptic number.

It is an amenable number.

12212548765 is a deficient number, since it is larger than the sum of its proper divisors (2499534875).

12212548765 is an equidigital number, since it uses as much as digits as its factorization.

12212548765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9504191.

The product of its digits is 268800, while the sum is 43.

The spelling of 12212548765 in words is "twelve billion, two hundred twelve million, five hundred forty-eight thousand, seven hundred sixty-five".