20001112221110 has 64 divisors (see below), whose sum is σ = 37112165280000. Its totient is φ = 7757377385472.

The previous prime is 20001112221059. The next prime is 20001112221133. The reversal of 20001112221110 is 1112221110002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94186772 + ... + 94398888.

It is an arithmetic number, because the mean of its divisors is an integer number (579877582500).

Almost surely, 2^{20001112221110} is an apocalyptic number.

20001112221110 is a deficient number, since it is larger than the sum of its proper divisors (17111053058890).

20001112221110 is a wasteful number, since it uses less digits than its factorization.

20001112221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214265.

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

Adding to 20001112221110 its reverse (1112221110002), we get a palindrome (21113333331112).

The spelling of 20001112221110 in words is "twenty trillion, one billion, one hundred twelve million, two hundred twenty-one thousand, one hundred ten".