121120120002 has 64 divisors (see below), whose sum is σ = 304087173120. Its totient is φ = 31358980224.

The previous prime is 121120120001. The next prime is 121120120013. The reversal of 121120120002 is 200021021121.

It is a self number, because there is not a number n which added to its sum of digits gives 121120120002.

It is not an unprimeable number, because it can be changed into a prime (121120120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3281203 + ... + 3317910.

It is an arithmetic number, because the mean of its divisors is an integer number (4751362080).

Almost surely, 2^121120120002 is an apocalyptic number.

121120120002 is an abundant number, since it is smaller than the sum of its proper divisors (182967053118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121120120002 is a wasteful number, since it uses less digits than its factorization.

121120120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599167.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121120120002 its reverse (200021021121), we get a palindrome (321141141123).

The spelling of 121120120002 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twenty thousand, two".