210112111212 has 24 divisors (see below), whose sum is σ = 490319420976. Its totient is φ = 70029109248.

The previous prime is 210112111189. The next prime is 210112111213. The reversal of 210112111212 is 212111211012.

It is a happy number.

It is a super-2 number, since 2×210112111212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210112111191 and 210112111200.

It is not an unprimeable number, because it can be changed into a prime (210112111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926233 + ... + 1130544.

It is an arithmetic number, because the mean of its divisors is an integer number (20429975874).

Almost surely, 2^210112111212 is an apocalyptic number.

It is an amenable number.

210112111212 is an abundant number, since it is smaller than the sum of its proper divisors (280207309764).

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

210112111212 is a wasteful number, since it uses less digits than its factorization.

210112111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065297 (or 2065295 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210112111212 its reverse (212111211012), we get a palindrome (422223322224).

The spelling of 210112111212 in words is "two hundred ten billion, one hundred twelve million, one hundred eleven thousand, two hundred twelve".