20200101012 has 288 divisors, whose sum is σ = 68346899712. Its totient is φ = 4878102528.

The previous prime is 20200101011. The next prime is 20200101059. The reversal of 20200101012 is 21010100202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20200100985 and 20200101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200101011) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2055703 + ... + 2065505.

It is an arithmetic number, because the mean of its divisors is an integer number (237315624).

Almost surely, 2^20200101012 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 20200101012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34173449856).

20200101012 is an abundant number, since it is smaller than the sum of its proper divisors (48146798700).

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

20200101012 is a wasteful number, since it uses less digits than its factorization.

20200101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9887 (or 9882 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20200101012 its reverse (21010100202), we get a palindrome (41210201214).

The spelling of 20200101012 in words is "twenty billion, two hundred million, one hundred one thousand, twelve".