121200011012 has 12 divisors (see below), whose sum is σ = 223263178320. Its totient is φ = 57410531496.

The previous prime is 121200011011. The next prime is 121200011041. The reversal of 121200011012 is 210110002121.

It is a junction number, because it is equal to n+sod(n) for n = 121200010984 and 121200011002.

It is not an unprimeable number, because it can be changed into a prime (121200011011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797368418 + ... + 797368569.

It is an arithmetic number, because the mean of its divisors is an integer number (18605264860).

Almost surely, 2^121200011012 is an apocalyptic number.

It is an amenable number.

121200011012 is a deficient number, since it is larger than the sum of its proper divisors (102063167308).

121200011012 is a wasteful number, since it uses less digits than its factorization.

121200011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594737010 (or 1594737008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121200011012 its reverse (210110002121), we get a palindrome (331310013133).

The spelling of 121200011012 in words is "one hundred twenty-one billion, two hundred million, eleven thousand, twelve".