20110120220112 has 80 divisors (see below), whose sum is σ = 55948356367680. Its totient is φ = 6187621948416.

The previous prime is 20110120220077. The next prime is 20110120220161. The reversal of 20110120220112 is 21102202101102.

It is a junction number, because it is equal to n+sod(n) for n = 20110120220091 and 20110120220100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40473439 + ... + 40967297.

It is an arithmetic number, because the mean of its divisors is an integer number (699354454596).

Almost surely, 2^{20110120220112} is an apocalyptic number.

It is an amenable number.

20110120220112 is an abundant number, since it is smaller than the sum of its proper divisors (35838236147568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20110120220112 is a wasteful number, since it uses less digits than its factorization.

20110120220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559140 (or 559134 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20110120220112 its reverse (21102202101102), we get a palindrome (41212322321214).

The spelling of 20110120220112 in words is "twenty trillion, one hundred ten billion, one hundred twenty million, two hundred twenty thousand, one hundred twelve".