102100102011021 has 8 divisors (see below), whose sum is σ = 136393762790560. Its totient is φ = 67936587952752.

The previous prime is 102100102010923. The next prime is 102100102011031. The reversal of 102100102011021 is 120110201001201.

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

It is not a de Polignac number, because 102100102011021 - 2⁹ = 102100102010509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102100102010988 and 102100102011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100102011031) 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, 32536678486 + ... + 32536681623.

It is an arithmetic number, because the mean of its divisors is an integer number (17049220348820).

Almost surely, 2^{102100102011021} is an apocalyptic number.

It is an amenable number.

102100102011021 is a deficient number, since it is larger than the sum of its proper divisors (34293660779539).

102100102011021 is an equidigital number, since it uses as much as digits as its factorization.

102100102011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65073360635.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102100102011021 its reverse (120110201001201), we get a palindrome (222210303012222).

The spelling of 102100102011021 in words is "one hundred two trillion, one hundred billion, one hundred two million, eleven thousand, twenty-one".