121000021011112 has 16 divisors (see below), whose sum is σ = 236739171543840. Its totient is φ = 57869575266096.

The previous prime is 121000021011109. The next prime is 121000021011179. The reversal of 121000021011112 is 211110120000121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121000021011092 and 121000021011101.

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 3 ways as a sum of consecutive naturals, for example, 328804404738 + ... + 328804405105.

It is an arithmetic number, because the mean of its divisors is an integer number (14796198221490).

Almost surely, 2^{121000021011112} is an apocalyptic number.

It is an amenable number.

121000021011112 is a deficient number, since it is larger than the sum of its proper divisors (115739150532728).

121000021011112 is a wasteful number, since it uses less digits than its factorization.

121000021011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657608809872 (or 657608809868 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121000021011112 its reverse (211110120000121), we get a palindrome (332110141011233).

The spelling of 121000021011112 in words is "one hundred twenty-one trillion, twenty-one million, eleven thousand, one hundred twelve".