212210103330 has 96 divisors (see below), whose sum is σ = 571249551600. Its totient is φ = 54592290816.

The previous prime is 212210103319. The next prime is 212210103331. The reversal of 212210103330 is 33301012212.

212210103330 is a `hidden beast` number, since 21 + 2 + 210 + 103 + 330 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 27476046081 + 184734057249 = 165759^2 + 429807^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212210103331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3142966 + ... + 3209774.

Almost surely, 2^212210103330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212210103330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285624775800).

212210103330 is an abundant number, since it is smaller than the sum of its proper divisors (359039448270).

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

212210103330 is a wasteful number, since it uses less digits than its factorization.

212210103330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68068 (or 68065 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212210103330 its reverse (33301012212), we get a palindrome (245511115542).

The spelling of 212210103330 in words is "two hundred twelve billion, two hundred ten million, one hundred three thousand, three hundred thirty".