121330110012 has 12 divisors (see below), whose sum is σ = 283103590056. Its totient is φ = 40443370000.

The previous prime is 121330109941. The next prime is 121330110023. The reversal of 121330110012 is 210011033121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 121330109973 and 121330110000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055421239 + ... + 5055421262.

It is an arithmetic number, because the mean of its divisors is an integer number (23591965838).

Almost surely, 2^121330110012 is an apocalyptic number.

121330110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121330110012 is an abundant number, since it is smaller than the sum of its proper divisors (161773480044).

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

121330110012 is a wasteful number, since it uses less digits than its factorization.

121330110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110842508 (or 10110842506 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121330110012 its reverse (210011033121), we get a palindrome (331341143133).

The spelling of 121330110012 in words is "one hundred twenty-one billion, three hundred thirty million, one hundred ten thousand, twelve".