110211212121012 has 36 divisors (see below), whose sum is σ = 286118897536836. Its totient is φ = 35744176903680.

The previous prime is 110211212120959. The next prime is 110211212121037. The reversal of 110211212121012 is 210121212112011.

It is a happy number.

110211212121012 is a `hidden beast` number, since 110 + 211 + 2 + 121 + 210 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62293860881316 + 47917351239696 = 7892646^2 + 6922236^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×110211212121012² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41370573789 + ... + 41370576452.

It is an arithmetic number, because the mean of its divisors is an integer number (7947747153801).

Almost surely, 2^{110211212121012} is an apocalyptic number.

110211212121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

110211212121012 is an abundant number, since it is smaller than the sum of its proper divisors (175907685415824).

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

110211212121012 is a wasteful number, since it uses less digits than its factorization.

110211212121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82741150288 (or 82741150283 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 110211212121012 its reverse (210121212112011), we get a palindrome (320332424233023).

Subtracting 110211212121012 from its reverse (210121212112011), we obtain a palindrome (99909999990999).

The spelling of 110211212121012 in words is "one hundred ten trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty-one thousand, twelve".