2213131111 has 8 divisors (see below), whose sum is σ = 2351779920. Its totient is φ = 2075422848.

The previous prime is 2213131097. The next prime is 2213131117. The reversal of 2213131111 is 1111313122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2213131111 - 2⁹ = 2213130599 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 (2213131117) 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, 230281 + ... + 239698.

It is an arithmetic number, because the mean of its divisors is an integer number (293972490).

Almost surely, 2^2213131111 is an apocalyptic number.

2213131111 is a deficient number, since it is larger than the sum of its proper divisors (138648809).

2213131111 is a wasteful number, since it uses less digits than its factorization.

2213131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470273.

The product of its digits is 36, while the sum is 16.

The square root of 2213131111 is about 47043.9274614695. The cubic root of 2213131111 is about 1303.1739233232.

Adding to 2213131111 its reverse (1111313122), we get a palindrome (3324444233).

The spelling of 2213131111 in words is "two billion, two hundred thirteen million, one hundred thirty-one thousand, one hundred eleven".