121101212212 has 12 divisors (see below), whose sum is σ = 212082161760. Its totient is φ = 60506308856.

The previous prime is 121101212179. The next prime is 121101212237. The reversal of 121101212212 is 212212101121.

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 3 ways as a sum of consecutive naturals, for example, 11068162 + ... + 11079097.

It is an arithmetic number, because the mean of its divisors is an integer number (17673513480).

Almost surely, 2^121101212212 is an apocalyptic number.

It is an amenable number.

121101212212 is a deficient number, since it is larger than the sum of its proper divisors (90980949548).

121101212212 is a wasteful number, since it uses less digits than its factorization.

121101212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22148630 (or 22148628 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121101212212 its reverse (212212101121), we get a palindrome (333313313333).

The spelling of 121101212212 in words is "one hundred twenty-one billion, one hundred one million, two hundred twelve thousand, two hundred twelve".