102110102021 has 8 divisors (see below), whose sum is σ = 103709358144. Its totient is φ = 100515320640.

The previous prime is 102110102011. The next prime is 102110102041. The reversal of 102110102021 is 120201011201.

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 102110102021 - 2⁶ = 102110101957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102110101993 and 102110102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110102011) 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, 1072676 + ... + 1163981.

It is an arithmetic number, because the mean of its divisors is an integer number (12963669768).

Almost surely, 2^102110102021 is an apocalyptic number.

It is an amenable number.

102110102021 is a deficient number, since it is larger than the sum of its proper divisors (1599256123).

102110102021 is an equidigital number, since it uses as much as digits as its factorization.

102110102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237371.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102110102021 its reverse (120201011201), we get a palindrome (222311113222).

The spelling of 102110102021 in words is "one hundred two billion, one hundred ten million, one hundred two thousand, twenty-one".