210111232213 has 4 divisors (see below), whose sum is σ = 210118210348. Its totient is φ = 210104254080.

The previous prime is 210111232211. The next prime is 210111232249. The reversal of 210111232213 is 312232111012.

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 37452699729 + 172658532484 = 193527^2 + 415522^2 .

It is a cyclic number.

It is not a de Polignac number, because 210111232213 - 2¹ = 210111232211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210111232211) 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, 3443706 + ... + 3504187.

It is an arithmetic number, because the mean of its divisors is an integer number (52529552587).

Almost surely, 2^210111232213 is an apocalyptic number.

It is an amenable number.

210111232213 is a deficient number, since it is larger than the sum of its proper divisors (6978135).

210111232213 is an equidigital number, since it uses as much as digits as its factorization.

210111232213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978134.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 210111232213 its reverse (312232111012), we get a palindrome (522343343225).

The spelling of 210111232213 in words is "two hundred ten billion, one hundred eleven million, two hundred thirty-two thousand, two hundred thirteen".