121112011222012 has 24 divisors (see below), whose sum is σ = 229188186448704. Its totient is φ = 55781251725312.

The previous prime is 121112011222009. The next prime is 121112011222067. The reversal of 121112011222012 is 210222110211121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18947432853 + ... + 18947439244.

It is an arithmetic number, because the mean of its divisors is an integer number (9549507768696).

Almost surely, 2^{121112011222012} is an apocalyptic number.

It is an amenable number.

121112011222012 is a deficient number, since it is larger than the sum of its proper divisors (108076175226692).

121112011222012 is a wasteful number, since it uses less digits than its factorization.

121112011222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37894872165 (or 37894872163 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121112011222012 its reverse (210222110211121), we get a palindrome (331334121433133).

The spelling of 121112011222012 in words is "one hundred twenty-one trillion, one hundred twelve billion, eleven million, two hundred twenty-two thousand, twelve".