213221133111 has 8 divisors (see below), whose sum is σ = 324908393344. Its totient is φ = 121840647480.

The previous prime is 213221133109. The next prime is 213221133133. The reversal of 213221133111 is 111331122312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213221133111 - 2¹ = 213221133109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10153387291 = 213221133111 / (2 + 1 + 3 + 2 + 2 + 1 + 1 + 3 + 3 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213221133161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5076693625 + ... + 5076693666.

It is an arithmetic number, because the mean of its divisors is an integer number (40613549168).

Almost surely, 2^213221133111 is an apocalyptic number.

213221133111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213221133111 is a deficient number, since it is larger than the sum of its proper divisors (111687260233).

213221133111 is a wasteful number, since it uses less digits than its factorization.

213221133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153387301.

The product of its digits is 216, while the sum is 21.

Adding to 213221133111 its reverse (111331122312), we get a palindrome (324552255423).

The spelling of 213221133111 in words is "two hundred thirteen billion, two hundred twenty-one million, one hundred thirty-three thousand, one hundred eleven".