121020021002 has 8 divisors (see below), whose sum is σ = 181532880000. Its totient is φ = 60509061004.

The previous prime is 121020020969. The next prime is 121020021041. The reversal of 121020021002 is 200120020121.

It is a happy number.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303002 + ... + 577797.

It is an arithmetic number, because the mean of its divisors is an integer number (22691610000).

Almost surely, 2^121020021002 is an apocalyptic number.

121020021002 is a deficient number, since it is larger than the sum of its proper divisors (60512858998).

121020021002 is an equidigital number, since it uses as much as digits as its factorization.

121020021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949500.

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

Adding to 121020021002 its reverse (200120020121), we get a palindrome (321140041123).

The spelling of 121020021002 in words is "one hundred twenty-one billion, twenty million, twenty-one thousand, two".