121130020112 has 20 divisors (see below), whose sum is σ = 237904339740. Its totient is φ = 59735351808.

The previous prime is 121130020103. The next prime is 121130020129. The reversal of 121130020112 is 211020031121.

It can be written as a sum of positive squares in 2 ways, for example, as 48512705536 + 72617314576 = 220256^2 + 269476^2 .

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, 51852437 + ... + 51854772.

It is an arithmetic number, because the mean of its divisors is an integer number (11895216987).

Almost surely, 2^121130020112 is an apocalyptic number.

It is an amenable number.

121130020112 is a deficient number, since it is larger than the sum of its proper divisors (116774319628).

121130020112 is a wasteful number, since it uses less digits than its factorization.

121130020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103707290 (or 103707284 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121130020112 its reverse (211020031121), we get a palindrome (332150051233).

The spelling of 121130020112 in words is "one hundred twenty-one billion, one hundred thirty million, twenty thousand, one hundred twelve".