121000121212 has 6 divisors (see below), whose sum is σ = 211750212128. Its totient is φ = 60500060604.

The previous prime is 121000121197. The next prime is 121000121219. The reversal of 121000121212 is 212121000121.

121000121212 is a modest number, since divided by 121212 gives 121000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 121000121192 and 121000121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000121219) 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 as a sum of consecutive naturals, namely, 15125015148 + ... + 15125015155.

Almost surely, 2^121000121212 is an apocalyptic number.

It is an amenable number.

121000121212 is a deficient number, since it is larger than the sum of its proper divisors (90750090916).

121000121212 is a wasteful number, since it uses less digits than its factorization.

121000121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30250030307 (or 30250030305 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121000121212 its reverse (212121000121), we get a palindrome (333121121333).

It can be divided in two parts, 121000121 and 212, that multiplied together give a palindrome (25652025652).

The spelling of 121000121212 in words is "one hundred twenty-one billion, one hundred twenty-one thousand, two hundred twelve".