20120122020012 has 24 divisors (see below), whose sum is σ = 53653658720256. Its totient is φ = 5748606291408.

The previous prime is 20120122019989. The next prime is 20120122020029. The reversal of 20120122020012 is 21002022102102.

It is a junction number, because it is equal to n+sod(n) for n = 20120122019973 and 20120122020000.

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, 119762630988 + ... + 119762631155.

It is an arithmetic number, because the mean of its divisors is an integer number (2235569113344).

Almost surely, 2^{20120122020012} is an apocalyptic number.

It is an amenable number.

20120122020012 is an abundant number, since it is smaller than the sum of its proper divisors (33533536700244).

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

20120122020012 is a wasteful number, since it uses less digits than its factorization.

20120122020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239525262157 (or 239525262155 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20120122020012 its reverse (21002022102102), we get a palindrome (41122144122114).

The spelling of 20120122020012 in words is "twenty trillion, one hundred twenty billion, one hundred twenty-two million, twenty thousand, twelve".