12203305422 has 64 divisors (see below), whose sum is σ = 30468593664. Its totient is φ = 3165567840.

The previous prime is 12203305421. The next prime is 12203305423. The reversal of 12203305422 is 22450330221.

It is an interprime number because it is at equal distance from previous prime (12203305421) and next prime (12203305423).

It is a super-2 number, since 2×12203305422² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12203305392 and 12203305401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203305421) 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, 346813 + ... + 380375.

It is an arithmetic number, because the mean of its divisors is an integer number (476071776).

Almost surely, 2^12203305422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12203305422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15234296832).

12203305422 is an abundant number, since it is smaller than the sum of its proper divisors (18265288242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12203305422 is a wasteful number, since it uses less digits than its factorization.

12203305422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34373.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 12203305422 its reverse (22450330221), we get a palindrome (34653635643).

The spelling of 12203305422 in words is "twelve billion, two hundred three million, three hundred five thousand, four hundred twenty-two".