213001223111 has 8 divisors (see below), whose sum is σ = 216530761200. Its totient is φ = 209481991488.

The previous prime is 213001223063. The next prime is 213001223161. The reversal of 213001223111 is 111322100312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213001223111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213001223111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213001223161) 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, 2534936 + ... + 2617613.

It is an arithmetic number, because the mean of its divisors is an integer number (27066345150).

Almost surely, 2^213001223111 is an apocalyptic number.

213001223111 is a deficient number, since it is larger than the sum of its proper divisors (3529538089).

213001223111 is an equidigital number, since it uses as much as digits as its factorization.

213001223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153233.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 213001223111 its reverse (111322100312), we get a palindrome (324323323423).

The spelling of 213001223111 in words is "two hundred thirteen billion, one million, two hundred twenty-three thousand, one hundred eleven".