202110211212 has 144 divisors (see below), whose sum is σ = 611156216160. Its totient is φ = 51465673728.

The previous prime is 202110211169. The next prime is 202110211213. The reversal of 202110211212 is 212112011202.

It is a junction number, because it is equal to n+sod(n) for n = 202110211191 and 202110211200.

It is not an unprimeable number, because it can be changed into a prime (202110211213) 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, 234193 + ... + 677544.

It is an arithmetic number, because the mean of its divisors is an integer number (4244140390).

Almost surely, 2^202110211212 is an apocalyptic number.

It is an amenable number.

202110211212 is an abundant number, since it is smaller than the sum of its proper divisors (409046004948).

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

202110211212 is a wasteful number, since it uses less digits than its factorization.

202110211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911800 (or 911791 counting only the distinct ones).

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

Adding to 202110211212 its reverse (212112011202), we get a palindrome (414222222414).

The spelling of 202110211212 in words is "two hundred two billion, one hundred ten million, two hundred eleven thousand, two hundred twelve".