121000021112 has 32 divisors (see below), whose sum is σ = 227684995200. Its totient is φ = 60284162400.

The previous prime is 121000021099. The next prime is 121000021141. The reversal of 121000021112 is 211120000121.

It is a junction number, because it is equal to n+sod(n) for n = 121000021093 and 121000021102.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8877839 + ... + 8891457.

It is an arithmetic number, because the mean of its divisors is an integer number (7115156100).

Almost surely, 2^121000021112 is an apocalyptic number.

It is an amenable number.

121000021112 is a deficient number, since it is larger than the sum of its proper divisors (106684974088).

121000021112 is a wasteful number, since it uses less digits than its factorization.

121000021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17507 (or 17503 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121000021112 its reverse (211120000121), we get a palindrome (332120021233).

The spelling of 121000021112 in words is "one hundred twenty-one billion, twenty-one thousand, one hundred twelve".