213021133210 has 64 divisors (see below), whose sum is σ = 404907206400. Its totient is φ = 80466642432.

The previous prime is 213021133201. The next prime is 213021133217. The reversal of 213021133210 is 12331120312.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (213021133217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138055699 + ... + 138057241.

It is an arithmetic number, because the mean of its divisors is an integer number (6326675100).

Almost surely, 2^213021133210 is an apocalyptic number.

213021133210 is a deficient number, since it is larger than the sum of its proper divisors (191886073190).

213021133210 is a wasteful number, since it uses less digits than its factorization.

213021133210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 213021133210 its reverse (12331120312), we get a palindrome (225352253522).

The spelling of 213021133210 in words is "two hundred thirteen billion, twenty-one million, one hundred thirty-three thousand, two hundred ten".