20212000120 has 96 divisors (see below), whose sum is σ = 51689020320. Its totient is φ = 7070042880.

The previous prime is 20212000097. The next prime is 20212000121. The reversal of 20212000120 is 2100021202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20212000097 and 20212000106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212000121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133885 + ... + 241555.

It is an arithmetic number, because the mean of its divisors is an integer number (538427295).

Almost surely, 2^20212000120 is an apocalyptic number.

20212000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25844510160).

20212000120 is an abundant number, since it is smaller than the sum of its proper divisors (31477020200).

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

20212000120 is a wasteful number, since it uses less digits than its factorization.

20212000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107733 (or 107710 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20212000120 its reverse (2100021202), we get a palindrome (22312021322).

The spelling of 20212000120 in words is "twenty billion, two hundred twelve million, one hundred twenty", and thus it is an aban number.