121221033212212 has 12 divisors (see below), whose sum is σ = 212194784864160. Its totient is φ = 60593951822456.

The previous prime is 121221033212197. The next prime is 121221033212221. The reversal of 121221033212212 is 212212330122121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4141179448 + ... + 4141208719.

It is an arithmetic number, because the mean of its divisors is an integer number (17682898738680).

Almost surely, 2^{121221033212212} is an apocalyptic number.

It is an amenable number.

121221033212212 is a deficient number, since it is larger than the sum of its proper divisors (90973751651948).

121221033212212 is a wasteful number, since it uses less digits than its factorization.

121221033212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8282391830 (or 8282391828 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 121221033212212 its reverse (212212330122121), we get a palindrome (333433363334333).

The spelling of 121221033212212 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, thirty-three million, two hundred twelve thousand, two hundred twelve".