121112020012 has 12 divisors (see below), whose sum is σ = 214499602296. Its totient is φ = 59826419360.

The previous prime is 121112019989. The next prime is 121112020027. The reversal of 121112020012 is 210020211121.

It is a super-3 number, since 3×121112020012³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121112019974 and 121112020001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182397289 + ... + 182397952.

It is an arithmetic number, because the mean of its divisors is an integer number (17874966858).

Almost surely, 2^121112020012 is an apocalyptic number.

It is an amenable number.

121112020012 is a deficient number, since it is larger than the sum of its proper divisors (93387582284).

121112020012 is a wasteful number, since it uses less digits than its factorization.

121112020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364795328 (or 364795326 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121112020012 its reverse (210020211121), we get a palindrome (331132231133).

The spelling of 121112020012 in words is "one hundred twenty-one billion, one hundred twelve million, twenty thousand, twelve".