102101120110021 has 8 divisors (see below), whose sum is σ = 103453201082880. Its totient is φ = 100750530680592.

The previous prime is 102101120110019. The next prime is 102101120110069. The reversal of 102101120110021 is 120011021101201.

It is a happy number.

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 102101120110021 - 2¹ = 102101120110019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102101120109983 and 102101120110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101120110081) 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, 372748045 + ... + 373021858.

It is an arithmetic number, because the mean of its divisors is an integer number (12931650135360).

Almost surely, 2^{102101120110021} is an apocalyptic number.

It is an amenable number.

102101120110021 is a deficient number, since it is larger than the sum of its proper divisors (1352080972859).

102101120110021 is an equidigital number, since it uses as much as digits as its factorization.

102101120110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745771715.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102101120110021 its reverse (120011021101201), we get a palindrome (222112141211222).

The spelling of 102101120110021 in words is "one hundred two trillion, one hundred one billion, one hundred twenty million, one hundred ten thousand, twenty-one".