213125222 has 8 divisors (see below), whose sum is σ = 333587376. Its totient is φ = 101929432.

The previous prime is 213125221. The next prime is 213125303. The reversal of 213125222 is 222521312.

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 = 213125194 and 213125203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213125221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2316533 + ... + 2316624.

It is an arithmetic number, because the mean of its divisors is an integer number (41698422).

Almost surely, 2^213125222 is an apocalyptic number.

213125222 is a deficient number, since it is larger than the sum of its proper divisors (120462154).

213125222 is a wasteful number, since it uses less digits than its factorization.

213125222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633182.

The product of its digits is 480, while the sum is 20.

The square root of 213125222 is about 14598.8089240184. The cubic root of 213125222 is about 597.3262715099.

Adding to 213125222 its reverse (222521312), we get a palindrome (435646534).

The spelling of 213125222 in words is "two hundred thirteen million, one hundred twenty-five thousand, two hundred twenty-two".