121001220002 has 16 divisors (see below), whose sum is σ = 195517082880. Its totient is φ = 55831410192.

The previous prime is 121001219953. The next prime is 121001220019. The reversal of 121001220002 is 200022100121.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 540818 + ... + 731085.

It is an arithmetic number, because the mean of its divisors is an integer number (12219817680).

Almost surely, 2^121001220002 is an apocalyptic number.

121001220002 is a deficient number, since it is larger than the sum of its proper divisors (74515862878).

121001220002 is a wasteful number, since it uses less digits than its factorization.

121001220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275577.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121001220002 its reverse (200022100121), we get a palindrome (321023320123).

The spelling of 121001220002 in words is "one hundred twenty-one billion, one million, two hundred twenty thousand, two".