213443122 has 8 divisors (see below), whose sum is σ = 330492672. Its totient is φ = 103278900.

The previous prime is 213443107. The next prime is 213443149. The reversal of 213443122 is 221344312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213443093 and 213443102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721254 + ... + 1721377.

It is an arithmetic number, because the mean of its divisors is an integer number (41311584).

Almost surely, 2^213443122 is an apocalyptic number.

213443122 is a deficient number, since it is larger than the sum of its proper divisors (117049550).

213443122 is a wasteful number, since it uses less digits than its factorization.

213443122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442664.

The product of its digits is 1152, while the sum is 22.

The square root of 213443122 is about 14609.6927414645. The cubic root of 213443122 is about 597.6231168482.

Adding to 213443122 its reverse (221344312), we get a palindrome (434787434).

It can be divided in two parts, 21344312 and 2, that multiplied together give a palindrome (42688624).

The spelling of 213443122 in words is "two hundred thirteen million, four hundred forty-three thousand, one hundred twenty-two".