20120112120012 has 48 divisors (see below), whose sum is σ = 46959154109952. Its totient is φ = 6704957787840.

The previous prime is 20120112120001. The next prime is 20120112120013. The reversal of 20120112120012 is 21002121102102.

It is a junction number, because it is equal to n+sod(n) for n = 20120112119973 and 20120112120000.

It is not an unprimeable number, because it can be changed into a prime (20120112120013) 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, 1187509213 + ... + 1187526155.

It is an arithmetic number, because the mean of its divisors is an integer number (978315710624).

Almost surely, 2^{20120112120012} is an apocalyptic number.

It is an amenable number.

20120112120012 is an abundant number, since it is smaller than the sum of its proper divisors (26839041989940).

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

20120112120012 is a wasteful number, since it uses less digits than its factorization.

20120112120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36878 (or 36876 counting only the distinct ones).

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

Adding to 20120112120012 its reverse (21002121102102), we get a palindrome (41122233222114).

The spelling of 20120112120012 in words is "twenty trillion, one hundred twenty billion, one hundred twelve million, one hundred twenty thousand, twelve".