20120020101012 has 96 divisors (see below), whose sum is σ = 51061949447040. Its totient is φ = 6129075340800.

The previous prime is 20120020101001. The next prime is 20120020101017. The reversal of 20120020101012 is 21010102002102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120020101017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310975338 + ... + 311040030.

It is an arithmetic number, because the mean of its divisors is an integer number (531895306740).

Almost surely, 2^{20120020101012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20120020101012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25530974723520).

20120020101012 is an abundant number, since it is smaller than the sum of its proper divisors (30941929346028).

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

20120020101012 is a wasteful number, since it uses less digits than its factorization.

20120020101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84553 (or 84551 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20120020101012 its reverse (21010102002102), we get a palindrome (41130122103114).

The spelling of 20120020101012 in words is "twenty trillion, one hundred twenty billion, twenty million, one hundred one thousand, twelve".