12121110202212 has 36 divisors (see below), whose sum is σ = 33424879649616. Its totient is φ = 3673063697520.

The previous prime is 12121110202183. The next prime is 12121110202237. The reversal of 12121110202212 is 21220201112121.

12121110202212 is a `hidden beast` number, since 121 + 21 + 110 + 202 + 212 = 666.

12121110202212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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

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, 15304431678 + ... + 15304432469.

It is an arithmetic number, because the mean of its divisors is an integer number (928468879156).

Almost surely, 2^{12121110202212} is an apocalyptic number.

12121110202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12121110202212 is an abundant number, since it is smaller than the sum of its proper divisors (21303769447404).

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

12121110202212 is a wasteful number, since it uses less digits than its factorization.

12121110202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30608864168 (or 30608864163 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12121110202212 its reverse (21220201112121), we get a palindrome (33341311314333).

Subtracting 12121110202212 from its reverse (21220201112121), we obtain a palindrome (9099090909909).

The spelling of 12121110202212 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, two hundred two thousand, two hundred twelve".