121002100012 has 12 divisors (see below), whose sum is σ = 216918399096. Its totient is φ = 59025414560.

The previous prime is 121002099997. The next prime is 121002100069. The reversal of 121002100012 is 210001200121.

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, 368908678 + ... + 368909005.

It is an arithmetic number, because the mean of its divisors is an integer number (18076533258).

Almost surely, 2^121002100012 is an apocalyptic number.

It is an amenable number.

121002100012 is a deficient number, since it is larger than the sum of its proper divisors (95916299084).

121002100012 is a wasteful number, since it uses less digits than its factorization.

121002100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737817728 (or 737817726 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121002100012 its reverse (210001200121), we get a palindrome (331003300133).

It can be divided in two parts, 12100 and 2100012, that added together give a palindrome (2112112).

The spelling of 121002100012 in words is "one hundred twenty-one billion, two million, one hundred thousand, twelve".