102010010021 has 8 divisors (see below), whose sum is σ = 108033964224. Its totient is φ = 96118450560.

The previous prime is 102010010017. The next prime is 102010010071. The reversal of 102010010021 is 120010010201.

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 102010010021 - 2² = 102010010017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102010009990 and 102010010008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102010010071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33097100 + ... + 33100181.

It is an arithmetic number, because the mean of its divisors is an integer number (13504245528).

Almost surely, 2^102010010021 is an apocalyptic number.

It is an amenable number.

102010010021 is a deficient number, since it is larger than the sum of its proper divisors (6023954203).

102010010021 is an equidigital number, since it uses as much as digits as its factorization.

102010010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66197371.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 102010010021 its reverse (120010010201), we get a palindrome (222020020222).

The spelling of 102010010021 in words is "one hundred two billion, ten million, ten thousand, twenty-one".