2002010221 has 4 divisors (see below), whose sum is σ = 2107379200. Its totient is φ = 1896641244.

The previous prime is 2002010209. The next prime is 2002010249. The reversal of 2002010221 is 1220102002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2002010221 - 2¹³ = 2002002029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002010198 and 2002010207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002010281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52684461 + ... + 52684498.

It is an arithmetic number, because the mean of its divisors is an integer number (526844800).

Almost surely, 2^2002010221 is an apocalyptic number.

It is an amenable number.

2002010221 is a deficient number, since it is larger than the sum of its proper divisors (105368979).

2002010221 is a wasteful number, since it uses less digits than its factorization.

2002010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105368978.

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

The square root of 2002010221 is about 44743.8288594081. The cubic root of 2002010221 is about 1260.3430285069.

Adding to 2002010221 its reverse (1220102002), we get a palindrome (3222112223).

The spelling of 2002010221 in words is "two billion, two million, ten thousand, two hundred twenty-one".