20001121001110 has 16 divisors (see below), whose sum is σ = 37567322924256. Its totient is φ = 7652602817728.

The previous prime is 20001121001077. The next prime is 20001121001203. The reversal of 20001121001110 is 1110012110002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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, 43480697599 + ... + 43480698058.

It is an arithmetic number, because the mean of its divisors is an integer number (2347957682766).

Almost surely, 2^{20001121001110} is an apocalyptic number.

20001121001110 is a deficient number, since it is larger than the sum of its proper divisors (17566201923146).

20001121001110 is a wasteful number, since it uses less digits than its factorization.

20001121001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86961395687.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20001121001110 its reverse (1110012110002), we get a palindrome (21111133111112).

The spelling of 20001121001110 in words is "twenty trillion, one billion, one hundred twenty-one million, one thousand, one hundred ten".