121021021002 has 32 divisors (see below), whose sum is σ = 278218449792. Its totient is φ = 34377562944.

The previous prime is 121021020949. The next prime is 121021021021. The reversal of 121021021002 is 200120120121.

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 15 ways as a sum of consecutive naturals, for example, 8320633 + ... + 8335164.

It is an arithmetic number, because the mean of its divisors is an integer number (8694326556).

Almost surely, 2^121021021002 is an apocalyptic number.

121021021002 is an abundant number, since it is smaller than the sum of its proper divisors (157197428790).

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

121021021002 is a wasteful number, since it uses less digits than its factorization.

121021021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16655982.

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

Adding to 121021021002 its reverse (200120120121), we get a palindrome (321141141123).

The spelling of 121021021002 in words is "one hundred twenty-one billion, twenty-one million, twenty-one thousand, two".