12260220 has 48 divisors (see below), whose sum is σ = 39234048. Its totient is φ = 2802240.

The previous prime is 12260197. The next prime is 12260233. The reversal of 12260220 is 2206221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12260220.

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, 14176 + ... + 15015.

It is an arithmetic number, because the mean of its divisors is an integer number (817376).

Almost surely, 2^12260220 is an apocalyptic number.

12260220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12260220 is an abundant number, since it is smaller than the sum of its proper divisors (26973828).

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

12260220 is a wasteful number, since it uses less digits than its factorization.

12260220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29210 (or 29208 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12260220 is about 3501.4596956127. The cubic root of 12260220 is about 230.5859038022.

Adding to 12260220 its reverse (2206221), we get a palindrome (14466441).

The spelling of 12260220 in words is "twelve million, two hundred sixty thousand, two hundred twenty".