213231211210 has 16 divisors (see below), whose sum is σ = 385408782792. Its totient is φ = 84938572800.

The previous prime is 213231211201. The next prime is 213231211241. The reversal of 213231211210 is 12112132312.

It can be written as a sum of positive squares in 4 ways, for example, as 208553882329 + 4677328881 = 456677^2 + 68391^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44236431 + ... + 44241250.

Almost surely, 2^213231211210 is an apocalyptic number.

213231211210 is a deficient number, since it is larger than the sum of its proper divisors (172177571582).

213231211210 is a wasteful number, since it uses less digits than its factorization.

213231211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88477929.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213231211210 its reverse (12112132312), we get a palindrome (225343343522).

The spelling of 213231211210 in words is "two hundred thirteen billion, two hundred thirty-one million, two hundred eleven thousand, two hundred ten".