121110201212 has 96 divisors (see below), whose sum is σ = 284727550464. Its totient is φ = 43531488000.

The previous prime is 121110201161. The next prime is 121110201221. The reversal of 121110201212 is 212102011121.

121110201212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121110201212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8012462 + ... + 8027562.

It is an arithmetic number, because the mean of its divisors is an integer number (2965911984).

Almost surely, 2^121110201212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121110201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142363775232).

121110201212 is an abundant number, since it is smaller than the sum of its proper divisors (163617349252).

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

121110201212 is a wasteful number, since it uses less digits than its factorization.

121110201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17139 (or 17137 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121110201212 its reverse (212102011121), we get a palindrome (333212212333).

The spelling of 121110201212 in words is "one hundred twenty-one billion, one hundred ten million, two hundred one thousand, two hundred twelve".