1002102220221 has 8 divisors (see below), whose sum is σ = 1336276285344. Its totient is φ = 667998150960.

The previous prime is 1002102220211. The next prime is 1002102220303. The reversal of 1002102220221 is 1220222012001.

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

It is not a de Polignac number, because 1002102220221 - 2³³ = 993512285629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002102220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002102220211) 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, 17465550 + ... + 17522831.

It is an arithmetic number, because the mean of its divisors is an integer number (167034535668).

Almost surely, 2^{1002102220221} is an apocalyptic number.

It is an amenable number.

1002102220221 is a deficient number, since it is larger than the sum of its proper divisors (334174065123).

1002102220221 is an equidigital number, since it uses as much as digits as its factorization.

1002102220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34997931.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1002102220221 its reverse (1220222012001), we get a palindrome (2222324232222).

The spelling of 1002102220221 in words is "one trillion, two billion, one hundred two million, two hundred twenty thousand, two hundred twenty-one".