12203023122 has 24 divisors (see below), whose sum is σ = 26545231440. Its totient is φ = 4051467000.

The previous prime is 12203023121. The next prime is 12203023123. The reversal of 12203023122 is 22132030221.

It is an interprime number because it is at equal distance from previous prime (12203023121) and next prime (12203023123).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12203023095 and 12203023104.

It is not an unprimeable number, because it can be changed into a prime (12203023121) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 1345972 + ... + 1355007.

It is an arithmetic number, because the mean of its divisors is an integer number (1106051310).

Almost surely, 2^12203023122 is an apocalyptic number.

12203023122 is an abundant number, since it is smaller than the sum of its proper divisors (14342208318).

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

12203023122 is a wasteful number, since it uses less digits than its factorization.

12203023122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701238 (or 2701235 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12203023122 its reverse (22132030221), we get a palindrome (34335053343).

The spelling of 12203023122 in words is "twelve billion, two hundred three million, twenty-three thousand, one hundred twenty-two".