12251122305 has 32 divisors (see below), whose sum is σ = 19838896896. Its totient is φ = 6455199744.

The previous prime is 12251122259. The next prime is 12251122307. The reversal of 12251122305 is 50322115221.

It is not a de Polignac number, because 12251122305 - 2⁶ = 12251122241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12251122307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659829 + ... + 678141.

It is an arithmetic number, because the mean of its divisors is an integer number (619965528).

Almost surely, 2^12251122305 is an apocalyptic number.

12251122305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12251122305 is a deficient number, since it is larger than the sum of its proper divisors (7587774591).

12251122305 is a wasteful number, since it uses less digits than its factorization.

12251122305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18857.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12251122305 its reverse (50322115221), we get a palindrome (62573237526).

The spelling of 12251122305 in words is "twelve billion, two hundred fifty-one million, one hundred twenty-two thousand, three hundred five".