212023102122 has 192 divisors, whose sum is σ = 541928553600. Its totient is φ = 61664791968.

The previous prime is 212023102087. The next prime is 212023102177. The reversal of 212023102122 is 221201320212.

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

It is a junction number, because it is equal to n+sod(n) for n = 212023102095 and 212023102104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 478607233 + ... + 478607675.

It is an arithmetic number, because the mean of its divisors is an integer number (2822544550).

Almost surely, 2^212023102122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212023102122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270964276800).

212023102122 is an abundant number, since it is smaller than the sum of its proper divisors (329905451478).

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

212023102122 is an frugal number, since it uses more digits than its factorization.

212023102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212023102122 its reverse (221201320212), we get a palindrome (433224422334).

The spelling of 212023102122 in words is "two hundred twelve billion, twenty-three million, one hundred two thousand, one hundred twenty-two".