221343011302343 has 16 divisors (see below), whose sum is σ = 253130273088000. Its totient is φ = 189597463726752.

The previous prime is 221343011302337. The next prime is 221343011302363. The reversal of 221343011302343 is 343203110343122.

It is a cyclic number.

It is not a de Polignac number, because 221343011302343 - 2⁶ = 221343011302279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221343011302363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458225993 + ... + 458708781.

It is an arithmetic number, because the mean of its divisors is an integer number (15820642068000).

Almost surely, 2^{221343011302343} is an apocalyptic number.

221343011302343 is a deficient number, since it is larger than the sum of its proper divisors (31787261785657).

221343011302343 is a wasteful number, since it uses less digits than its factorization.

221343011302343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525854.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 221343011302343 its reverse (343203110343122), we get a palindrome (564546121645465).

The spelling of 221343011302343 in words is "two hundred twenty-one trillion, three hundred forty-three billion, eleven million, three hundred two thousand, three hundred forty-three".