110212121211 has 16 divisors (see below), whose sum is σ = 155627245824. Its totient is φ = 69231232224.

The previous prime is 110212121189. The next prime is 110212121219. The reversal of 110212121211 is 112121212011.

It is a happy number.

It is not a de Polignac number, because 110212121211 - 2⁵ = 110212121179 is a prime.

It is a super-2 number, since 2×110212121211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (110212121219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11915356 + ... + 11924601.

It is an arithmetic number, because the mean of its divisors is an integer number (9726702864).

Almost surely, 2^110212121211 is an apocalyptic number.

110212121211 is a deficient number, since it is larger than the sum of its proper divisors (45415124613).

110212121211 is a wasteful number, since it uses less digits than its factorization.

110212121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23840050.

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

Adding to 110212121211 its reverse (112121212011), we get a palindrome (222333333222).

The spelling of 110212121211 in words is "one hundred ten billion, two hundred twelve million, one hundred twenty-one thousand, two hundred eleven".