213101210 has 32 divisors (see below), whose sum is σ = 457443072. Its totient is φ = 69886080.

The previous prime is 213101201. The next prime is 213101221. The reversal of 213101210 is 12101312.

It is a junction number, because it is equal to n+sod(n) for n = 213101191 and 213101200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64571 + ... + 67790.

It is an arithmetic number, because the mean of its divisors is an integer number (14295096).

Almost surely, 2^213101210 is an apocalyptic number.

213101210 is an abundant number, since it is smaller than the sum of its proper divisors (244341862).

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

213101210 is a wasteful number, since it uses less digits than its factorization.

213101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132398.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 213101210 is about 14597.9865049944. The cubic root of 213101210 is about 597.3038378487.

Adding to 213101210 its reverse (12101312), we get a palindrome (225202522).

The spelling of 213101210 in words is "two hundred thirteen million, one hundred one thousand, two hundred ten".