211330021210 has 128 divisors (see below), whose sum is σ = 487611187200. Its totient is φ = 64033324800.

The previous prime is 211330021159. The next prime is 211330021211. The reversal of 211330021210 is 12120033112.

It is not an unprimeable number, because it can be changed into a prime (211330021211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5372715 + ... + 5411905.

It is an arithmetic number, because the mean of its divisors is an integer number (3809462400).

Almost surely, 2^211330021210 is an apocalyptic number.

211330021210 is an abundant number, since it is smaller than the sum of its proper divisors (276281165990).

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

211330021210 is a wasteful number, since it uses less digits than its factorization.

211330021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39412.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211330021210 its reverse (12120033112), we get a palindrome (223450054322).

The spelling of 211330021210 in words is "two hundred eleven billion, three hundred thirty million, twenty-one thousand, two hundred ten".