102021103221 has 8 divisors (see below), whose sum is σ = 136420150944. Its totient is φ = 67818062160.

The previous prime is 102021103189. The next prime is 102021103319. The reversal of 102021103221 is 122301120201.

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

It is not a de Polignac number, because 102021103221 - 2⁵ = 102021103189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102021103221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102029103221) 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, 49000450 + ... + 49002531.

It is an arithmetic number, because the mean of its divisors is an integer number (17052518868).

Almost surely, 2^102021103221 is an apocalyptic number.

It is an amenable number.

102021103221 is a deficient number, since it is larger than the sum of its proper divisors (34399047723).

102021103221 is an equidigital number, since it uses as much as digits as its factorization.

102021103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98003331.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102021103221 its reverse (122301120201), we get a palindrome (224322223422).

The spelling of 102021103221 in words is "one hundred two billion, twenty-one million, one hundred three thousand, two hundred twenty-one".