121221101021002 has 8 divisors (see below), whose sum is σ = 181831815959616. Its totient is φ = 60610495701132.

The previous prime is 121221101020997. The next prime is 121221101021051. The reversal of 121221101021002 is 200120101122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24581928 + ... + 29098339.

It is an arithmetic number, because the mean of its divisors is an integer number (22728976994952).

Almost surely, 2^{121221101021002} is an apocalyptic number.

121221101021002 is a deficient number, since it is larger than the sum of its proper divisors (60610714938614).

121221101021002 is a wasteful number, since it uses less digits than its factorization.

121221101021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54809372.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121221101021002 its reverse (200120101122121), we get a palindrome (321341202143123).

The spelling of 121221101021002 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, one hundred one million, twenty-one thousand, two".