20121121110002 has 16 divisors (see below), whose sum is σ = 33097855578624. Its totient is φ = 9098079510000.

The previous prime is 20121121109963. The next prime is 20121121110011. The reversal of 20121121110002 is 20001112112102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2394227249 + ... + 2394235652.

It is an arithmetic number, because the mean of its divisors is an integer number (2068615973664).

Almost surely, 2^{20121121110002} is an apocalyptic number.

20121121110002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20121121110002 is a deficient number, since it is larger than the sum of its proper divisors (12976734468622).

20121121110002 is a wasteful number, since it uses less digits than its factorization.

20121121110002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788463105.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20121121110002 its reverse (20001112112102), we get a palindrome (40122233222104).

The spelling of 20121121110002 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred ten thousand, two".