12573551222 has 4 divisors (see below), whose sum is σ = 18860326836. Its totient is φ = 6286775610.

The previous prime is 12573551219. The next prime is 12573551231. The reversal of 12573551222 is 22215537521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22215537521 = 37 ⋅600419933.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3143387804 + ... + 3143387807.

It is an arithmetic number, because the mean of its divisors is an integer number (4715081709).

Almost surely, 2^12573551222 is an apocalyptic number.

12573551222 is a deficient number, since it is larger than the sum of its proper divisors (6286775614).

12573551222 is an equidigital number, since it uses as much as digits as its factorization.

12573551222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6286775613.

The product of its digits is 42000, while the sum is 35.

The spelling of 12573551222 in words is "twelve billion, five hundred seventy-three million, five hundred fifty-one thousand, two hundred twenty-two".