12220443355 has 8 divisors (see below), whose sum is σ = 14679246672. Its totient is φ = 9766544928.

The previous prime is 12220443341. The next prime is 12220443379. The reversal of 12220443355 is 55334402221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220443355 is a prime.

It is a Duffinian 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, 1220737 + ... + 1230706.

It is an arithmetic number, because the mean of its divisors is an integer number (1834905834).

Almost surely, 2^12220443355 is an apocalyptic number.

12220443355 is a deficient number, since it is larger than the sum of its proper divisors (2458803317).

12220443355 is an equidigital number, since it uses as much as digits as its factorization.

12220443355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452445.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 12220443355 its reverse (55334402221), we get a palindrome (67554845576).

The spelling of 12220443355 in words is "twelve billion, two hundred twenty million, four hundred forty-three thousand, three hundred fifty-five".