2012201020 has 24 divisors (see below), whose sum is σ = 4226945184. Its totient is φ = 804628416.

The previous prime is 2012200973. The next prime is 2012201071. The reversal of 2012201020 is 201022102.

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 = 2012200988 and 2012201006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58194 + ... + 86086.

It is an arithmetic number, because the mean of its divisors is an integer number (176122716).

Almost surely, 2^2012201020 is an apocalyptic number.

2012201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012201020 is an abundant number, since it is smaller than the sum of its proper divisors (2214744164).

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

2012201020 is a wasteful number, since it uses less digits than its factorization.

2012201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31509 (or 31507 counting only the distinct ones).

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

The square root of 2012201020 is about 44857.5636877439. The cubic root of 2012201020 is about 1262.4779111908.

Adding to 2012201020 its reverse (201022102), we get a palindrome (2213223122).

The spelling of 2012201020 in words is "two billion, twelve million, two hundred one thousand, twenty".