213205110 has 32 divisors (see below), whose sum is σ = 514563840. Its totient is φ = 56535648.

The previous prime is 213205103. The next prime is 213205133. The reversal of 213205110 is 11502312.

It is a super-2 number, since 2×213205110² = 90912837860224200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 213205110.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14482 + ... + 25221.

It is an arithmetic number, because the mean of its divisors is an integer number (16080120).

Almost surely, 2^213205110 is an apocalyptic number.

213205110 is an abundant number, since it is smaller than the sum of its proper divisors (301358730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213205110 is a wasteful number, since it uses less digits than its factorization.

213205110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39892.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 213205110 is about 14601.5447812894. The cubic root of 213205110 is about 597.4008962456.

Adding to 213205110 its reverse (11502312), we get a palindrome (224707422).

The spelling of 213205110 in words is "two hundred thirteen million, two hundred five thousand, one hundred ten".