123233220220 has 48 divisors (see below), whose sum is σ = 285889766400. Its totient is φ = 44244832320.

The previous prime is 123233220203. The next prime is 123233220233. The reversal of 123233220220 is 22022332321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123233220191 and 123233220200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3527880 + ... + 3562639.

It is an arithmetic number, because the mean of its divisors is an integer number (5956036800).

Almost surely, 2^123233220220 is an apocalyptic number.

123233220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123233220220 is an abundant number, since it is smaller than the sum of its proper divisors (162656546180).

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

123233220220 is a wasteful number, since it uses less digits than its factorization.

123233220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7090618 (or 7090616 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 123233220220 its reverse (22022332321), we get a palindrome (145255552541).

The spelling of 123233220220 in words is "one hundred twenty-three billion, two hundred thirty-three million, two hundred twenty thousand, two hundred twenty".