20120220120112 has 40 divisors (see below), whose sum is σ = 45756021826976. Its totient is φ = 8389898735616.

The previous prime is 20120220120071. The next prime is 20120220120137. The reversal of 20120220120112 is 21102102202102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2427628593 + ... + 2427636880.

Almost surely, 2^{20120220120112} is an apocalyptic number.

It is an amenable number.

20120220120112 is an abundant number, since it is smaller than the sum of its proper divisors (25635801706864).

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

20120220120112 is a wasteful number, since it uses less digits than its factorization.

20120220120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855265525 (or 4855265519 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20120220120112 its reverse (21102102202102), we get a palindrome (41222322322214).

The spelling of 20120220120112 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, one hundred twenty thousand, one hundred twelve".