213222020243 has 16 divisors (see below), whose sum is σ = 226324834560. Its totient is φ = 200181811200.

The previous prime is 213222020201. The next prime is 213222020257. The reversal of 213222020243 is 342020222312.

It is a cyclic number.

It is not a de Polignac number, because 213222020243 - 2¹⁴ = 213222003859 is a prime.

It is a super-3 number, since 3×213222020243³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213222080243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37137353 + ... + 37143093.

It is an arithmetic number, because the mean of its divisors is an integer number (14145302160).

Almost surely, 2^213222020243 is an apocalyptic number.

213222020243 is a deficient number, since it is larger than the sum of its proper divisors (13102814317).

213222020243 is a wasteful number, since it uses less digits than its factorization.

213222020243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10798.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 213222020243 its reverse (342020222312), we get a palindrome (555242242555).

The spelling of 213222020243 in words is "two hundred thirteen billion, two hundred twenty-two million, twenty thousand, two hundred forty-three".