121000011212 has 12 divisors (see below), whose sum is σ = 213933010200. Its totient is φ = 59876294016.

The previous prime is 121000011203. The next prime is 121000011227. The reversal of 121000011212 is 212110000121.

It is a junction number, because it is equal to n+sod(n) for n = 121000011193 and 121000011202.

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, 155927462 + ... + 155928237.

It is an arithmetic number, because the mean of its divisors is an integer number (17827750850).

Almost surely, 2^121000011212 is an apocalyptic number.

It is an amenable number.

121000011212 is a deficient number, since it is larger than the sum of its proper divisors (92932998988).

121000011212 is a wasteful number, since it uses less digits than its factorization.

121000011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311855800 (or 311855798 counting only the distinct ones).

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

Adding to 121000011212 its reverse (212110000121), we get a palindrome (333110011333).

The spelling of 121000011212 in words is "one hundred twenty-one billion, eleven thousand, two hundred twelve".