2010001221021 has 16 divisors (see below), whose sum is σ = 2699429929280. Its totient is φ = 1330287719040.

The previous prime is 2010001220977. The next prime is 2010001221037. The reversal of 2010001221021 is 1201221000102.

It is not a de Polignac number, because 2010001221021 - 2⁶ = 2010001220957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010001220988 and 2010001221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010001221071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8114991 + ... + 8359011.

It is an arithmetic number, because the mean of its divisors is an integer number (168714370580).

Almost surely, 2^{2010001221021} is an apocalyptic number.

It is an amenable number.

2010001221021 is a deficient number, since it is larger than the sum of its proper divisors (689428708259).

2010001221021 is a wasteful number, since it uses less digits than its factorization.

2010001221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263916.

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

Adding to 2010001221021 its reverse (1201221000102), we get a palindrome (3211222221123).

The spelling of 2010001221021 in words is "two trillion, ten billion, one million, two hundred twenty-one thousand, twenty-one".