12511222210 has 8 divisors (see below), whose sum is σ = 22520199996. Its totient is φ = 5004488880.

The previous prime is 12511222189. The next prime is 12511222219. The reversal of 12511222210 is 1222211521.

It is a happy number.

12511222210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11788096329 + 723125881 = 108573^2 + 26891^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12511222219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625561101 + ... + 625561120.

Almost surely, 2^12511222210 is an apocalyptic number.

12511222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12511222210 is a deficient number, since it is larger than the sum of its proper divisors (10008977786).

12511222210 is a wasteful number, since it uses less digits than its factorization.

12511222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251122228.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 12511222210 its reverse (1222211521), we get a palindrome (13733433731).

The spelling of 12511222210 in words is "twelve billion, five hundred eleven million, two hundred twenty-two thousand, two hundred ten".