213244422111 has 12 divisors (see below), whose sum is σ = 352022538192. Its totient is φ = 121853955456.

The previous prime is 213244422089. The next prime is 213244422151. The reversal of 213244422111 is 111224442312.

213244422111 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 4 + 442 + 211 + 1 = 666.

It is not a de Polignac number, because 213244422111 - 2¹¹ = 213244420063 is a prime.

It is a super-2 number, since 2×213244422111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213244422151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1692415986 + ... + 1692416111.

It is an arithmetic number, because the mean of its divisors is an integer number (29335211516).

Almost surely, 2^213244422111 is an apocalyptic number.

213244422111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213244422111 is a deficient number, since it is larger than the sum of its proper divisors (138778116081).

213244422111 is a wasteful number, since it uses less digits than its factorization.

213244422111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384832110 (or 3384832107 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 213244422111 its reverse (111224442312), we get a palindrome (324468864423).

The spelling of 213244422111 in words is "two hundred thirteen billion, two hundred forty-four million, four hundred twenty-two thousand, one hundred eleven".