213212110 has 64 divisors (see below), whose sum is σ = 425502720. Its totient is φ = 76602240.

The previous prime is 213212099. The next prime is 213212117. The reversal of 213212110 is 11212312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213212117) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 311829 + ... + 312511.

It is an arithmetic number, because the mean of its divisors is an integer number (6648480).

Almost surely, 2^213212110 is an apocalyptic number.

213212110 is a deficient number, since it is larger than the sum of its proper divisors (212290610).

213212110 is a wasteful number, since it uses less digits than its factorization.

213212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 213212110 is about 14601.7844799874. The cubic root of 213212110 is about 597.4074341760.

Adding to 213212110 its reverse (11212312), we get a palindrome (224424422).

The spelling of 213212110 in words is "two hundred thirteen million, two hundred twelve thousand, one hundred ten".