20120220101112 has 32 divisors (see below), whose sum is σ = 50819112632400. Its totient is φ = 6637598383104.

The previous prime is 20120220101099. The next prime is 20120220101119. The reversal of 20120220101112 is 21110102202102.

It is a junction number, because it is equal to n+sod(n) for n = 20120220101091 and 20120220101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120220101119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4321350787 + ... + 4321355442.

Almost surely, 2^{20120220101112} is an apocalyptic number.

It is an amenable number.

20120220101112 is an abundant number, since it is smaller than the sum of its proper divisors (30698892531288).

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

20120220101112 is a wasteful number, since it uses less digits than its factorization.

20120220101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8642706335 (or 8642706331 counting only the distinct ones).

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

Adding to 20120220101112 its reverse (21110102202102), we get a palindrome (41230322303214).

The spelling of 20120220101112 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, one hundred one thousand, one hundred twelve".