2010002221021 has 4 divisors (see below), whose sum is σ = 2010005274844. Its totient is φ = 2009999167200.

The previous prime is 2010002220991. The next prime is 2010002221033. The reversal of 2010002221021 is 1201222000102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 850803312100 + 1159198908921 = 922390^2 + 1076661^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010002221021 - 2¹⁹ = 2010001696733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010002220992 and 2010002221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010002221421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87000 + ... + 2006881.

It is an arithmetic number, because the mean of its divisors is an integer number (502501318711).

Almost surely, 2^{2010002221021} is an apocalyptic number.

It is an amenable number.

2010002221021 is a deficient number, since it is larger than the sum of its proper divisors (3053823).

2010002221021 is an equidigital number, since it uses as much as digits as its factorization.

2010002221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053822.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2010002221021 its reverse (1201222000102), we get a palindrome (3211224221123).

The spelling of 2010002221021 in words is "two trillion, ten billion, two million, two hundred twenty-one thousand, twenty-one".