12250499999 has 4 divisors (see below), whose sum is σ = 12971117664. Its totient is φ = 11529882336.

The previous prime is 12250499993. The next prime is 12250500011. The reversal of 12250499999 is 99999405221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12250499999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12250499993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360308807 + ... + 360308840.

It is an arithmetic number, because the mean of its divisors is an integer number (3242779416).

Almost surely, 2^12250499999 is an apocalyptic number.

12250499999 is a deficient number, since it is larger than the sum of its proper divisors (720617665).

12250499999 is an equidigital number, since it uses as much as digits as its factorization.

12250499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720617664.

The product of its (nonzero) digits is 4723920, while the sum is 59.

The spelling of 12250499999 in words is "twelve billion, two hundred fifty million, four hundred ninety-nine thousand, nine hundred ninety-nine".