20120210012 has 24 divisors (see below), whose sum is σ = 40999676256. Its totient is φ = 8460249408.

The previous prime is 20120210009. The next prime is 20120210029. The reversal of 20120210012 is 21001202102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20120209975 and 20120210002.

It is a congruent number.

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, 6777563 + ... + 6780530.

It is an arithmetic number, because the mean of its divisors is an integer number (1708319844).

Almost surely, 2^20120210012 is an apocalyptic number.

It is an amenable number.

20120210012 is an abundant number, since it is smaller than the sum of its proper divisors (20879466244).

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

20120210012 is a wasteful number, since it uses less digits than its factorization.

20120210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13558157 (or 13558155 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20120210012 its reverse (21001202102), we get a palindrome (41121412114).

The spelling of 20120210012 in words is "twenty billion, one hundred twenty million, two hundred ten thousand, twelve".