221313202043 has 16 divisors (see below), whose sum is σ = 224864640000. Its totient is φ = 217783918080.

The previous prime is 221313201983. The next prime is 221313202163. The reversal of 221313202043 is 340202313122.

It is a cyclic number.

It is not a de Polignac number, because 221313202043 - 2¹⁶ = 221313136507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221313202343) 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, 51598043 + ... + 51602331.

It is an arithmetic number, because the mean of its divisors is an integer number (14054040000).

Almost surely, 2^221313202043 is an apocalyptic number.

221313202043 is a deficient number, since it is larger than the sum of its proper divisors (3551437957).

221313202043 is a wasteful number, since it uses less digits than its factorization.

221313202043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6682.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221313202043 its reverse (340202313122), we get a palindrome (561515515165).

The spelling of 221313202043 in words is "two hundred twenty-one billion, three hundred thirteen million, two hundred two thousand, forty-three".