12225778573 has 4 divisors (see below), whose sum is σ = 12268979488. Its totient is φ = 12182577660.

The previous prime is 12225778567. The next prime is 12225778637. The reversal of 12225778573 is 37587752221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12225778573 - 2⁵ = 12225778541 is a prime.

It is a super-3 number, since 3×12225778573³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225778373) 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, 21600033 + ... + 21600598.

It is an arithmetic number, because the mean of its divisors is an integer number (3067244872).

Almost surely, 2^12225778573 is an apocalyptic number.

It is an amenable number.

12225778573 is a deficient number, since it is larger than the sum of its proper divisors (43200915).

12225778573 is an equidigital number, since it uses as much as digits as its factorization.

12225778573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43200914.

The product of its digits is 1646400, while the sum is 49.

The spelling of 12225778573 in words is "twelve billion, two hundred twenty-five million, seven hundred seventy-eight thousand, five hundred seventy-three".