213222231113 has 4 divisors (see below), whose sum is σ = 216143083668. Its totient is φ = 210301378560.

The previous prime is 213222231059. The next prime is 213222231127. The reversal of 213222231113 is 311132222312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44627407504 + 168594823609 = 211252^2 + 410603^2 .

It is a cyclic number.

It is not a de Polignac number, because 213222231113 - 2¹² = 213222227017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213222231133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460426168 + ... + 1460426313.

It is an arithmetic number, because the mean of its divisors is an integer number (54035770917).

Almost surely, 2^213222231113 is an apocalyptic number.

It is an amenable number.

213222231113 is a deficient number, since it is larger than the sum of its proper divisors (2920852555).

213222231113 is an equidigital number, since it uses as much as digits as its factorization.

213222231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920852554.

The product of its digits is 864, while the sum is 23.

Adding to 213222231113 its reverse (311132222312), we get a palindrome (524354453425).

The spelling of 213222231113 in words is "two hundred thirteen billion, two hundred twenty-two million, two hundred thirty-one thousand, one hundred thirteen".