213444122 has 8 divisors (see below), whose sum is σ = 320436372. Its totient is φ = 106632000.

The previous prime is 213444097. The next prime is 213444137. The reversal of 213444122 is 221444312.

213444122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 203889841 + 9554281 = 14279^2 + 3091^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42029 + ... + 46832.

Almost surely, 2^213444122 is an apocalyptic number.

213444122 is a deficient number, since it is larger than the sum of its proper divisors (106992250).

213444122 is a wasteful number, since it uses less digits than its factorization.

213444122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90064.

The product of its digits is 1536, while the sum is 23.

The square root of 213444122 is about 14609.7269652790. The cubic root of 213444122 is about 597.6240501525.

Adding to 213444122 its reverse (221444312), we get a palindrome (434888434).

The spelling of 213444122 in words is "two hundred thirteen million, four hundred forty-four thousand, one hundred twenty-two".