20110122201112 has 8 divisors (see below), whose sum is σ = 37706479127100. Its totient is φ = 10055061100552.

The previous prime is 20110122201077. The next prime is 20110122201131. The reversal of 20110122201112 is 21110222101102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256882637562 + ... + 1256882637577.

Almost surely, 2^{20110122201112} is an apocalyptic number.

It is an amenable number.

20110122201112 is a deficient number, since it is larger than the sum of its proper divisors (17596356925988).

20110122201112 is a wasteful number, since it uses less digits than its factorization.

20110122201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513765275145 (or 2513765275141 counting only the distinct ones).

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

Adding to 20110122201112 its reverse (21110222101102), we get a palindrome (41220344302214).

It can be divided in two parts, 2011012 and 2201112, that added together give a palindrome (4212124).

The spelling of 20110122201112 in words is "twenty trillion, one hundred ten billion, one hundred twenty-two million, two hundred one thousand, one hundred twelve".