2010721205061 has 20 divisors (see below), whose sum is σ = 3084850221772. Its totient is φ = 1304251590528.

The previous prime is 2010721205027. The next prime is 2010721205107. The reversal of 2010721205061 is 1605021270102.

2010721205061 is a `hidden beast` number, since 20 + 10 + 7 + 2 + 120 + 506 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1845169056900 + 165552148161 = 1358370^2 + 406881^2 .

It is not a de Polignac number, because 2010721205061 - 2¹⁸ = 2010720942917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010721205011) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 335452660 + ... + 335458653.

Almost surely, 2^{2010721205061} is an apocalyptic number.

It is an amenable number.

2010721205061 is a deficient number, since it is larger than the sum of its proper divisors (1074129016711).

2010721205061 is an equidigital number, since it uses as much as digits as its factorization.

2010721205061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670911362 (or 670911353 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

Adding to 2010721205061 its reverse (1605021270102), we get a palindrome (3615742475163).

The spelling of 2010721205061 in words is "two trillion, ten billion, seven hundred twenty-one million, two hundred five thousand, sixty-one".