121210100012 has 24 divisors (see below), whose sum is σ = 224888126400. Its totient is φ = 57002245776.

The previous prime is 121210099999. The next prime is 121210100029. The reversal of 121210100012 is 210001012121.

121210100012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121210099966 and 121210100002.

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 7 ways as a sum of consecutive naturals, for example, 5726378 + ... + 5747505.

It is an arithmetic number, because the mean of its divisors is an integer number (9370338600).

Almost surely, 2^121210100012 is an apocalyptic number.

It is an amenable number.

121210100012 is a deficient number, since it is larger than the sum of its proper divisors (103678026388).

121210100012 is a wasteful number, since it uses less digits than its factorization.

121210100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11474045 (or 11474043 counting only the distinct ones).

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

Adding to 121210100012 its reverse (210001012121), we get a palindrome (331211112133).

The spelling of 121210100012 in words is "one hundred twenty-one billion, two hundred ten million, one hundred thousand, twelve".