110101212 has 72 divisors (see below), whose sum is σ = 309429120. Its totient is φ = 32780160.

The previous prime is 110101171. The next prime is 110101217. The reversal of 110101212 is 212101011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 110101194 and 110101203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110101217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10714 + ... + 18302.

Almost surely, 2^110101212 is an apocalyptic number.

110101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 110101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154714560).

110101212 is an abundant number, since it is smaller than the sum of its proper divisors (199327908).

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

110101212 is a wasteful number, since it uses less digits than its factorization.

110101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7643 (or 7638 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 110101212 is about 10492.9124650880. The cubic root of 110101212 is about 479.2888949569.

Adding to 110101212 its reverse (212101011), we get a palindrome (322202223).

The spelling of 110101212 in words is "one hundred ten million, one hundred one thousand, two hundred twelve".