121221022000002 has 16 divisors (see below), whose sum is σ = 242442399035232. Its totient is φ = 40406948160800.

The previous prime is 121221021999983. The next prime is 121221022000007. The reversal of 121221022000002 is 200000220122121.

It is not an unprimeable number, because it can be changed into a prime (121221022000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10247028 + ... + 18639839.

It is an arithmetic number, because the mean of its divisors is an integer number (15152649939702).

Almost surely, 2^{121221022000002} is an apocalyptic number.

121221022000002 is an abundant number, since it is smaller than the sum of its proper divisors (121221377035230).

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

121221022000002 is a wasteful number, since it uses less digits than its factorization.

121221022000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29586273.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121221022000002 its reverse (200000220122121), we get a palindrome (321221242122123).

The spelling of 121221022000002 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty-two million, two", and thus it is an aban number.