102002202001221 has 8 divisors (see below), whose sum is σ = 136234627547424. Its totient is φ = 67885622227920.

The previous prime is 102002202001153. The next prime is 102002202001319. The reversal of 102002202001221 is 122100202200201.

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

It is not a de Polignac number, because 102002202001221 - 2⁷ = 102002202001093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102002202001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002202001421) 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, 28961441170 + ... + 28961444691.

It is an arithmetic number, because the mean of its divisors is an integer number (17029328443428).

Almost surely, 2^{102002202001221} is an apocalyptic number.

It is an amenable number.

102002202001221 is a deficient number, since it is larger than the sum of its proper divisors (34232425546203).

102002202001221 is an equidigital number, since it uses as much as digits as its factorization.

102002202001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57922886451.

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

Adding to 102002202001221 its reverse (122100202200201), we get a palindrome (224102404201422).

The spelling of 102002202001221 in words is "one hundred two trillion, two billion, two hundred two million, one thousand, two hundred twenty-one".