12214212340 has 48 divisors (see below), whose sum is σ = 28015424640. Its totient is φ = 4436170880.

The previous prime is 12214212331. The next prime is 12214212347. The reversal of 12214212340 is 4321241221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214212347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151494 + ... + 217666.

It is an arithmetic number, because the mean of its divisors is an integer number (583654680).

Almost surely, 2^12214212340 is an apocalyptic number.

12214212340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12214212340 is an abundant number, since it is smaller than the sum of its proper divisors (15801212300).

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

12214212340 is a wasteful number, since it uses less digits than its factorization.

12214212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67032 (or 67030 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12214212340 its reverse (4321241221), we get a palindrome (16535453561).

The spelling of 12214212340 in words is "twelve billion, two hundred fourteen million, two hundred twelve thousand, three hundred forty".