20012112221110 has 32 divisors (see below), whose sum is σ = 38141237620800. Its totient is φ = 7533871690752.

The previous prime is 20012112221099. The next prime is 20012112221117. The reversal of 20012112221110 is 1112221121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012112221117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12756522 + ... + 14239138.

It is an arithmetic number, because the mean of its divisors is an integer number (1191913675650).

Almost surely, 2^{20012112221110} is an apocalyptic number.

20012112221110 is a deficient number, since it is larger than the sum of its proper divisors (18129125399690).

20012112221110 is a wasteful number, since it uses less digits than its factorization.

20012112221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562040.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20012112221110 its reverse (1112221121002), we get a palindrome (21124333342112).

The spelling of 20012112221110 in words is "twenty trillion, twelve billion, one hundred twelve million, two hundred twenty-one thousand, one hundred ten".