213202221331 has 16 divisors (see below), whose sum is σ = 242720375040. Its totient is φ = 185375074720.

The previous prime is 213202221319. The next prime is 213202221361. The reversal of 213202221331 is 133122202312.

It is a de Polignac number, because none of the positive numbers 2^k-213202221331 is a prime.

It is a super-2 number, since 2×213202221331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213202221301) 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, 2983740 + ... + 3054358.

It is an arithmetic number, because the mean of its divisors is an integer number (15170023440).

Almost surely, 2^213202221331 is an apocalyptic number.

213202221331 is a deficient number, since it is larger than the sum of its proper divisors (29518153709).

213202221331 is a wasteful number, since it uses less digits than its factorization.

213202221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82586.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213202221331 its reverse (133122202312), we get a palindrome (346324423643).

The spelling of 213202221331 in words is "two hundred thirteen billion, two hundred two million, two hundred twenty-one thousand, three hundred thirty-one".