102112021000221 has 8 divisors (see below), whose sum is σ = 136149473971584. Its totient is φ = 68074624347840.

The previous prime is 102112021000219. The next prime is 102112021000369. The reversal of 102112021000221 is 122000120211201.

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

It is not a de Polignac number, because 102112021000221 - 2¹ = 102112021000219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102112021000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112021005221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9650085 + ... + 17243786.

It is an arithmetic number, because the mean of its divisors is an integer number (17018684246448).

Almost surely, 2^{102112021000221} is an apocalyptic number.

It is an amenable number.

102112021000221 is a deficient number, since it is larger than the sum of its proper divisors (34037452971363).

102112021000221 is a wasteful number, since it uses less digits than its factorization.

102112021000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28159491.

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

Adding to 102112021000221 its reverse (122000120211201), we get a palindrome (224112141211422).

The spelling of 102112021000221 in words is "one hundred two trillion, one hundred twelve billion, twenty-one million, two hundred twenty-one", and thus it is an aban number.