210110221212 has 24 divisors (see below), whose sum is σ = 490626667776. Its totient is φ = 69983956848.

The previous prime is 210110221157. The next prime is 210110221271. The reversal of 210110221212 is 212122011012.

It is a junction number, because it is equal to n+sod(n) for n = 210110221191 and 210110221200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6581358 + ... + 6613205.

It is an arithmetic number, because the mean of its divisors is an integer number (20442777824).

Almost surely, 2^210110221212 is an apocalyptic number.

It is an amenable number.

210110221212 is an abundant number, since it is smaller than the sum of its proper divisors (280516446564).

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

210110221212 is a wasteful number, since it uses less digits than its factorization.

210110221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13195897 (or 13195895 counting only the distinct ones).

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

Adding to 210110221212 its reverse (212122011012), we get a palindrome (422232232224).

The spelling of 210110221212 in words is "two hundred ten billion, one hundred ten million, two hundred twenty-one thousand, two hundred twelve".