23212120 has 16 divisors (see below), whose sum is σ = 52227360. Its totient is φ = 9284832.

The previous prime is 23212099. The next prime is 23212139. The reversal of 23212120 is 2121232.

It is a self number, because there is not a number n which added to its sum of digits gives 23212120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290112 + ... + 290191.

It is an arithmetic number, because the mean of its divisors is an integer number (3264210).

Almost surely, 2^23212120 is an apocalyptic number.

23212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23212120 is an abundant number, since it is smaller than the sum of its proper divisors (29015240).

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

23212120 is a wasteful number, since it uses less digits than its factorization.

23212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580314 (or 580310 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 23212120 is about 4817.8958062623. The cubic root of 23212120 is about 285.2582864230.

Adding to 23212120 its reverse (2121232), we get a palindrome (25333352).

It can be divided in two parts, 23212 and 120, that added together give a palindrome (23332).

The spelling of 23212120 in words is "twenty-three million, two hundred twelve thousand, one hundred twenty".