12092220 has 144 divisors (see below), whose sum is σ = 43858080. Its totient is φ = 2757888.

The previous prime is 12092209. The next prime is 12092221. The reversal of 12092220 is 2229021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12092193 and 12092202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12092221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26232 + ... + 26688.

It is an arithmetic number, because the mean of its divisors is an integer number (304570).

Almost surely, 2^12092220 is an apocalyptic number.

12092220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12092220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21929040).

12092220 is an abundant number, since it is smaller than the sum of its proper divisors (31765860).

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

12092220 is a wasteful number, since it uses less digits than its factorization.

12092220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12092220 is about 3477.3869499956. The cubic root of 12092220 is about 229.5278278017.

The spelling of 12092220 in words is "twelve million, ninety-two thousand, two hundred twenty".