12355305422 has 4 divisors (see below), whose sum is σ = 18532958136. Its totient is φ = 6177652710.

The previous prime is 12355305421. The next prime is 12355305449. The reversal of 12355305422 is 22450355321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22450355321 = 569 ⋅39455809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12355305421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3088826354 + ... + 3088826357.

It is an arithmetic number, because the mean of its divisors is an integer number (4633239534).

Almost surely, 2^12355305422 is an apocalyptic number.

12355305422 is a deficient number, since it is larger than the sum of its proper divisors (6177652714).

12355305422 is an equidigital number, since it uses as much as digits as its factorization.

12355305422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177652713.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 12355305422 in words is "twelve billion, three hundred fifty-five million, three hundred five thousand, four hundred twenty-two".