12210140 has 24 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 4791488.

The previous prime is 12210137. The next prime is 12210173. The reversal of 12210140 is 4101221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4700 + ... + 6819.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^12210140 is an apocalyptic number.

12210140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210140 is an abundant number, since it is smaller than the sum of its proper divisors (13917220).

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

12210140 is a wasteful number, since it uses less digits than its factorization.

12210140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11581 (or 11579 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12210140 is about 3494.3010746071. The cubic root of 12210140 is about 230.2715130035.

Adding to 12210140 its reverse (4101221), we get a palindrome (16311361).

The spelling of 12210140 in words is "twelve million, two hundred ten thousand, one hundred forty".