123222444220 has 12 divisors (see below), whose sum is σ = 258767132904. Its totient is φ = 49288977680.

The previous prime is 123222444199. The next prime is 123222444223. The reversal of 123222444220 is 22444222321.

It is a happy number.

123222444220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×123222444220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123222444223) 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, 3080561086 + ... + 3080561125.

It is an arithmetic number, because the mean of its divisors is an integer number (21563927742).

Almost surely, 2^123222444220 is an apocalyptic number.

123222444220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123222444220 is an abundant number, since it is smaller than the sum of its proper divisors (135544688684).

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

123222444220 is a wasteful number, since it uses less digits than its factorization.

123222444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161122220 (or 6161122218 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 123222444220 its reverse (22444222321), we get a palindrome (145666666541).

It can be divided in two parts, 12322 and 2444220, that added together give a palindrome (2456542).

The spelling of 123222444220 in words is "one hundred twenty-three billion, two hundred twenty-two million, four hundred forty-four thousand, two hundred twenty".