12214140 has 24 divisors (see below), whose sum is σ = 34199760. Its totient is φ = 3257088.

The previous prime is 12214099. The next prime is 12214159. The reversal of 12214140 is 4141221.

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

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, 101725 + ... + 101844.

It is an arithmetic number, because the mean of its divisors is an integer number (1424990).

Almost surely, 2^12214140 is an apocalyptic number.

12214140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12214140 is an abundant number, since it is smaller than the sum of its proper divisors (21985620).

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

12214140 is a wasteful number, since it uses less digits than its factorization.

12214140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203581 (or 203579 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 12214140 is about 3494.8733882646. The cubic root of 12214140 is about 230.2966556442.

Adding to 12214140 its reverse (4141221), we get a palindrome (16355361).

The spelling of 12214140 in words is "twelve million, two hundred fourteen thousand, one hundred forty".