211031330122 has 64 divisors (see below), whose sum is σ = 345346467840. Its totient is φ = 96472454400.

The previous prime is 211031330099. The next prime is 211031330123. The reversal of 211031330122 is 221033130112.

It is a self number, because there is not a number n which added to its sum of digits gives 211031330122.

It is not an unprimeable number, because it can be changed into a prime (211031330123) 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, 21601683 + ... + 21611449.

It is an arithmetic number, because the mean of its divisors is an integer number (5396038560).

Almost surely, 2^211031330122 is an apocalyptic number.

211031330122 is a deficient number, since it is larger than the sum of its proper divisors (134315137718).

211031330122 is a wasteful number, since it uses less digits than its factorization.

211031330122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10087.

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

Adding to 211031330122 its reverse (221033130112), we get a palindrome (432064460234).

The spelling of 211031330122 in words is "two hundred eleven billion, thirty-one million, three hundred thirty thousand, one hundred twenty-two".