123322220 has 48 divisors (see below), whose sum is σ = 302030400. Its totient is φ = 42279552.

The previous prime is 123322187. The next prime is 123322231. The reversal of 123322220 is 22223321.

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, 2129 + ... + 15848.

It is an arithmetic number, because the mean of its divisors is an integer number (6292300).

Almost surely, 2^123322220 is an apocalyptic number.

123322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123322220 is an abundant number, since it is smaller than the sum of its proper divisors (178708180).

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

123322220 is a wasteful number, since it uses less digits than its factorization.

123322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18007 (or 17991 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 123322220 is about 11105.0538044622. The cubic root of 123322220 is about 497.7528759968.

Adding to 123322220 its reverse (22223321), we get a palindrome (145545541).

The spelling of 123322220 in words is "one hundred twenty-three million, three hundred twenty-two thousand, two hundred twenty".