10002002221 has 8 divisors (see below), whose sum is σ = 10100173824. Its totient is φ = 9904134240.

The previous prime is 10002002209. The next prime is 10002002239. The reversal of 10002002221 is 12220020001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10002002221 - 2¹⁹ = 10001477933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002002198 and 10002002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002002281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9415 + ... + 141748.

It is an arithmetic number, because the mean of its divisors is an integer number (1262521728).

Almost surely, 2^10002002221 is an apocalyptic number.

It is an amenable number.

10002002221 is a deficient number, since it is larger than the sum of its proper divisors (98171603).

10002002221 is a wasteful number, since it uses less digits than its factorization.

10002002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151811.

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

Adding to 10002002221 its reverse (12220020001), we get a palindrome (22222022222).

The spelling of 10002002221 in words is "ten billion, two million, two thousand, two hundred twenty-one".