121021001212 has 24 divisors (see below), whose sum is σ = 212016883232. Its totient is φ = 60444792000.

The previous prime is 121021001207. The next prime is 121021001237. The reversal of 121021001212 is 212100120121.

It is a junction number, because it is equal to n+sod(n) for n = 121021001192 and 121021001201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18986458 + ... + 18992830.

Almost surely, 2^121021001212 is an apocalyptic number.

It is an amenable number.

121021001212 is a deficient number, since it is larger than the sum of its proper divisors (90995882020).

121021001212 is a wasteful number, since it uses less digits than its factorization.

121021001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10789 (or 10787 counting only the distinct ones).

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

Adding to 121021001212 its reverse (212100120121), we get a palindrome (333121121333).

The spelling of 121021001212 in words is "one hundred twenty-one billion, twenty-one million, one thousand, two hundred twelve".