212212102110 has 128 divisors (see below), whose sum is σ = 554069859840. Its totient is φ = 51817857024.

The previous prime is 212212102099. The next prime is 212212102121. The reversal of 212212102110 is 11201212212.

It is an interprime number because it is at equal distance from previous prime (212212102099) and next prime (212212102121).

It is a super-3 number, since 3×212212102110³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212212102110.

It is a congruent number.

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, 2882377 + ... + 2955083.

It is an arithmetic number, because the mean of its divisors is an integer number (4328670780).

Almost surely, 2^212212102110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212212102110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277034929920).

212212102110 is an abundant number, since it is smaller than the sum of its proper divisors (341857757730).

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

212212102110 is a wasteful number, since it uses less digits than its factorization.

212212102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72890.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212212102110 its reverse (11201212212), we get a palindrome (223413314322).

It can be divided in two parts, 212212102 and 110, that added together give a palindrome (212212212).

The spelling of 212212102110 in words is "two hundred twelve billion, two hundred twelve million, one hundred two thousand, one hundred ten".