102002112010221 has 16 divisors (see below), whose sum is σ = 146809636479360. Its totient is φ = 62801900047040.

The previous prime is 102002112010177. The next prime is 102002112010229. The reversal of 102002112010221 is 122010211200201.

It is a cyclic number.

It is not a de Polignac number, because 102002112010221 - 2⁹ = 102002112009709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102002112010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002112010229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25487782110 + ... + 25487786111.

It is an arithmetic number, because the mean of its divisors is an integer number (9175602279960).

Almost surely, 2^{102002112010221} is an apocalyptic number.

It is an amenable number.

102002112010221 is a deficient number, since it is larger than the sum of its proper divisors (44807524469139).

102002112010221 is a wasteful number, since it uses less digits than its factorization.

102002112010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50975568276.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102002112010221 its reverse (122010211200201), we get a palindrome (224012323210422).

The spelling of 102002112010221 in words is "one hundred two trillion, two billion, one hundred twelve million, ten thousand, two hundred twenty-one".