121110021210012 has 24 divisors (see below), whose sum is σ = 283689621674256. Its totient is φ = 40212925329408.

The previous prime is 121110021209977. The next prime is 121110021210037. The reversal of 121110021210012 is 210012120011121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121110021209973 and 121110021210000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19635214363 + ... + 19635220530.

It is an arithmetic number, because the mean of its divisors is an integer number (11820400903094).

Almost surely, 2^{121110021210012} is an apocalyptic number.

121110021210012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121110021210012 is an abundant number, since it is smaller than the sum of its proper divisors (162579600464244).

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

121110021210012 is a wasteful number, since it uses less digits than its factorization.

121110021210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39270435157 (or 39270435155 counting only the distinct ones).

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

Adding to 121110021210012 its reverse (210012120011121), we get a palindrome (331122141221133).

The spelling of 121110021210012 in words is "one hundred twenty-one trillion, one hundred ten billion, twenty-one million, two hundred ten thousand, twelve".