213021203210 has 32 divisors (see below), whose sum is σ = 392410751040. Its totient is φ = 83215133568.

The previous prime is 213021203209. The next prime is 213021203237. The reversal of 213021203210 is 12302120312.

It is a super-2 number, since 2×213021203210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3406001 + ... + 3467979.

It is an arithmetic number, because the mean of its divisors is an integer number (12262835970).

Almost surely, 2^213021203210 is an apocalyptic number.

213021203210 is a deficient number, since it is larger than the sum of its proper divisors (179389547830).

213021203210 is a wasteful number, since it uses less digits than its factorization.

213021203210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70022.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 213021203210 its reverse (12302120312), we get a palindrome (225323323522).

The spelling of 213021203210 in words is "two hundred thirteen billion, twenty-one million, two hundred three thousand, two hundred ten".