121112012212 has 12 divisors (see below), whose sum is σ = 212627522016. Its totient is φ = 60361291640.

The previous prime is 121112012179. The next prime is 121112012213. The reversal of 121112012212 is 212210211121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112012213) 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 in 3 ways as a sum of consecutive naturals, for example, 48677218 + ... + 48679705.

It is an arithmetic number, because the mean of its divisors is an integer number (17718960168).

Almost surely, 2^121112012212 is an apocalyptic number.

It is an amenable number.

121112012212 is a deficient number, since it is larger than the sum of its proper divisors (91515509804).

121112012212 is a wasteful number, since it uses less digits than its factorization.

121112012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97357238 (or 97357236 counting only the distinct ones).

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

Adding to 121112012212 its reverse (212210211121), we get a palindrome (333322223333).

The spelling of 121112012212 in words is "one hundred twenty-one billion, one hundred twelve million, twelve thousand, two hundred twelve".