121011212212 has 12 divisors (see below), whose sum is σ = 231021405216. Its totient is φ = 55005096440.

The previous prime is 121011212177. The next prime is 121011212227. The reversal of 121011212212 is 212212110121.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1375127368 + ... + 1375127455.

It is an arithmetic number, because the mean of its divisors is an integer number (19251783768).

Almost surely, 2^121011212212 is an apocalyptic number.

It is an amenable number.

121011212212 is a deficient number, since it is larger than the sum of its proper divisors (110010193004).

121011212212 is a wasteful number, since it uses less digits than its factorization.

121011212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750254838 (or 2750254836 counting only the distinct ones).

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

Adding to 121011212212 its reverse (212212110121), we get a palindrome (333223322333).

The spelling of 121011212212 in words is "one hundred twenty-one billion, eleven million, two hundred twelve thousand, two hundred twelve".