102020331320221 has 8 divisors (see below), whose sum is σ = 108022214533824. Its totient is φ = 96018524468160.

The previous prime is 102020331320213. The next prime is 102020331320227. The reversal of 102020331320221 is 122023133020201.

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

It is a cyclic number.

It is not a de Polignac number, because 102020331320221 - 2³ = 102020331320213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102020331320192 and 102020331320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020331320227) 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, 16328335 + ... + 21694588.

It is an arithmetic number, because the mean of its divisors is an integer number (13502776816728).

Almost surely, 2^{102020331320221} is an apocalyptic number.

It is an amenable number.

102020331320221 is a deficient number, since it is larger than the sum of its proper divisors (6001883213603).

102020331320221 is a wasteful number, since it uses less digits than its factorization.

102020331320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38180771.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 102020331320221 its reverse (122023133020201), we get a palindrome (224043464340422).

The spelling of 102020331320221 in words is "one hundred two trillion, twenty billion, three hundred thirty-one million, three hundred twenty thousand, two hundred twenty-one".