102000312101221 has 8 divisors (see below), whose sum is σ = 102561225390720. Its totient is φ = 101440403134608.

The previous prime is 102000312101201. The next prime is 102000312101251. The reversal of 102000312101221 is 122101213000201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102000312101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102000312101195 and 102000312101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102000312101201) 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, 250877041 + ... + 251283286.

It is an arithmetic number, because the mean of its divisors is an integer number (12820153173840).

Almost surely, 2^{102000312101221} is an apocalyptic number.

It is an amenable number.

102000312101221 is a deficient number, since it is larger than the sum of its proper divisors (560913289499).

102000312101221 is an equidigital number, since it uses as much as digits as its factorization.

102000312101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502161443.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 102000312101221 its reverse (122101213000201), we get a palindrome (224101525101422).

The spelling of 102000312101221 in words is "one hundred two trillion, three hundred twelve million, one hundred one thousand, two hundred twenty-one".