12203221020 has 24 divisors (see below), whose sum is σ = 34169019024. Its totient is φ = 3254192256.

The previous prime is 12203221013. The next prime is 12203221033. The reversal of 12203221020 is 2012230221.

It is a happy number.

12203221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101693449 + ... + 101693568.

It is an arithmetic number, because the mean of its divisors is an integer number (1423709126).

Almost surely, 2^12203221020 is an apocalyptic number.

12203221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203221020 is an abundant number, since it is smaller than the sum of its proper divisors (21965798004).

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

12203221020 is a wasteful number, since it uses less digits than its factorization.

12203221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203387029 (or 203387027 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12203221020 its reverse (2012230221), we get a palindrome (14215451241).

The spelling of 12203221020 in words is "twelve billion, two hundred three million, two hundred twenty-one thousand, twenty".