2213122111 has 4 divisors (see below), whose sum is σ = 2213253000. Its totient is φ = 2212991224.

The previous prime is 2213122103. The next prime is 2213122117. The reversal of 2213122111 is 1112213122.

2213122111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2213122111 - 2³ = 2213122103 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 (2213122117) 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, 35521 + ... + 75418.

It is an arithmetic number, because the mean of its divisors is an integer number (553313250).

Almost surely, 2^2213122111 is an apocalyptic number.

2213122111 is a deficient number, since it is larger than the sum of its proper divisors (130889).

2213122111 is a wasteful number, since it uses less digits than its factorization.

2213122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130888.

The product of its digits is 48, while the sum is 16.

The square root of 2213122111 is about 47043.8318060933. The cubic root of 2213122111 is about 1303.1721568092.

Adding to 2213122111 its reverse (1112213122), we get a palindrome (3325335233).

It can be divided in two parts, 2213122 and 111, that multiplied together give a palindrome (245656542).

The spelling of 2213122111 in words is "two billion, two hundred thirteen million, one hundred twenty-two thousand, one hundred eleven".