12221435343 has 8 divisors (see below), whose sum is σ = 17548727728. Its totient is φ = 7520883264.

The previous prime is 12221435329. The next prime is 12221435351. The reversal of 12221435343 is 34353412221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12221435343 - 2¹³ = 12221427151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221435343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221435383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156685030 + ... + 156685107.

It is an arithmetic number, because the mean of its divisors is an integer number (2193590966).

Almost surely, 2^12221435343 is an apocalyptic number.

12221435343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12221435343 is a deficient number, since it is larger than the sum of its proper divisors (5327292385).

12221435343 is a wasteful number, since it uses less digits than its factorization.

12221435343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313370153.

The product of its digits is 17280, while the sum is 30.

Adding to 12221435343 its reverse (34353412221), we get a palindrome (46574847564).

The spelling of 12221435343 in words is "twelve billion, two hundred twenty-one million, four hundred thirty-five thousand, three hundred forty-three".