102002010221 has 8 divisors (see below), whose sum is σ = 103533308064. Its totient is φ = 100470973680.

The previous prime is 102002010217. The next prime is 102002010223. The reversal of 102002010221 is 122010200201.

It is a happy number.

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 102002010221 - 2² = 102002010217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002010223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808226 + ... + 925868.

It is an arithmetic number, because the mean of its divisors is an integer number (12941663508).

Almost surely, 2^102002010221 is an apocalyptic number.

It is an amenable number.

102002010221 is a deficient number, since it is larger than the sum of its proper divisors (1531297843).

102002010221 is a wasteful number, since it uses less digits than its factorization.

102002010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130651.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102002010221 its reverse (122010200201), we get a palindrome (224012210422).

The spelling of 102002010221 in words is "one hundred two billion, two million, ten thousand, two hundred twenty-one".