121020011002 has 48 divisors (see below), whose sum is σ = 202723282656. Its totient is φ = 53717164800.

The previous prime is 121020010999. The next prime is 121020011017. The reversal of 121020011002 is 200110020121.

It is a self number, because there is not a number n which added to its sum of digits gives 121020011002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67721553 + ... + 67723339.

It is an arithmetic number, because the mean of its divisors is an integer number (4223401722).

Almost surely, 2^121020011002 is an apocalyptic number.

121020011002 is a deficient number, since it is larger than the sum of its proper divisors (81703271654).

121020011002 is a wasteful number, since it uses less digits than its factorization.

121020011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121020011002 its reverse (200110020121), we get a palindrome (321130031123).

The spelling of 121020011002 in words is "one hundred twenty-one billion, twenty million, eleven thousand, two".