121012320012 has 24 divisors (see below), whose sum is σ = 282431214912. Its totient is φ = 40327563600.

The previous prime is 121012319977. The next prime is 121012320029. The reversal of 121012320012 is 210023210121.

It is a super-3 number, since 3×121012320012³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121012319973 and 121012320000.

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 7 ways as a sum of consecutive naturals, for example, 1183414 + ... + 1281597.

It is an arithmetic number, because the mean of its divisors is an integer number (11767967288).

Almost surely, 2^121012320012 is an apocalyptic number.

121012320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121012320012 is an abundant number, since it is smaller than the sum of its proper divisors (161418894900).

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

121012320012 is a wasteful number, since it uses less digits than its factorization.

121012320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469109 (or 2469107 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121012320012 its reverse (210023210121), we get a palindrome (331035530133).

The spelling of 121012320012 in words is "one hundred twenty-one billion, twelve million, three hundred twenty thousand, twelve".