2221231220343 has 48 divisors (see below), whose sum is σ = 3288468857856. Its totient is φ = 1444307397120.

The previous prime is 2221231220333. The next prime is 2221231220371. The reversal of 2221231220343 is 3430221321222.

2221231220343 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 2 + 312 + 2 + 0 + 343 = 666.

2221231220343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221231220343 - 2⁵ = 2221231220311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221231220333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150106221 + ... + 150121017.

It is an arithmetic number, because the mean of its divisors is an integer number (68509767872).

Almost surely, 2^{2221231220343} is an apocalyptic number.

2221231220343 is a deficient number, since it is larger than the sum of its proper divisors (1067237637513).

2221231220343 is a wasteful number, since it uses less digits than its factorization.

2221231220343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17144 (or 17141 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 2221231220343 its reverse (3430221321222), we get a palindrome (5651452541565).

The spelling of 2221231220343 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, two hundred twenty thousand, three hundred forty-three".