121020112112 has 20 divisors (see below), whose sum is σ = 234483306096. Its totient is φ = 60508291200.

The previous prime is 121020112111. The next prime is 121020112121. The reversal of 121020112112 is 211211020121.

It is a super-3 number, since 3×121020112112³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020112111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 590237 + ... + 768387.

Almost surely, 2^121020112112 is an apocalyptic number.

It is an amenable number.

121020112112 is a deficient number, since it is larger than the sum of its proper divisors (113463193984).

121020112112 is a wasteful number, since it uses less digits than its factorization.

121020112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220616 (or 220610 counting only the distinct ones).

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

Adding to 121020112112 its reverse (211211020121), we get a palindrome (332231132233).

The spelling of 121020112112 in words is "one hundred twenty-one billion, twenty million, one hundred twelve thousand, one hundred twelve".