212202010122210 has 128 divisors (see below), whose sum is σ = 571719216556800. Its totient is φ = 56002963161600.

The previous prime is 212202010122173. The next prime is 212202010122227. The reversal of 212202010122210 is 12221010202212.

It is a happy number.

212202010122210 is a `hidden beast` number, since 21 + 220 + 201 + 0 + 1 + 2 + 221 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62121102 + ... + 65447958.

It is an arithmetic number, because the mean of its divisors is an integer number (4466556379350).

Almost surely, 2^{212202010122210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212202010122210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285859608278400).

212202010122210 is an abundant number, since it is smaller than the sum of its proper divisors (359517206434590).

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

212202010122210 is a wasteful number, since it uses less digits than its factorization.

212202010122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329313 (or 3329307 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212202010122210 its reverse (12221010202212), we get a palindrome (224423020324422).

The spelling of 212202010122210 in words is "two hundred twelve trillion, two hundred two billion, ten million, one hundred twenty-two thousand, two hundred ten".